Mine

Section "Files"

    RgbPath         "/usr/share/X11/rgb"
#    RgbPath         "/usr/lib/X11/rgb"
    FontPath        "/usr/X11R6/lib/X11/fonts/local/"
    FontPath        "/usr/X11R6/lib/X11/fonts/misc/"
    FontPath        "/usr/X11R6/lib/X11/fonts/75dpi/:unscaled"
    FontPath        "/usr/X11R6/lib/X11/fonts/100dpi/:unscaled"
    FontPath        "/usr/X11R6/lib/X11/fonts/Type1/"
    FontPath        "/usr/X11R6/lib/X11/fonts/75dpi/"
    FontPath        "/usr/X11R6/lib/X11/fonts/100dpi/"
EndSection

Section "Module"

    Load           "extmod"
    Load           "type1"
    Load           "freetype"
    Load           "glx"   # libglx.a
    Load           "dbe"   # Double buffer extension
    Load           "rac"   # The Xorg log file told me so
EndSection

Section "ServerFlags"

    Option         "standby time" "20"
    Option         "suspend time" "30"
    Option         "off time" "60"
EndSection

Section "InputDevice"
    Identifier     "Keyboard1"
    Driver         "kbd"
    Option         "XkbModel" "pc104"
    Option         "XkbLayout" "us"
EndSection

Section "InputDevice"
    Identifier     "Touchpad"
    Driver         "synaptics"
    Option         "CorePointer"
    Option         "Device" "/dev/psaux"
    Option         "Protocol" "auto-dev"
    Option         "LeftEdge" "1700"
    Option         "RightEdge" "5300"
    Option         "TopEdge" "1700"
    Option         "BottomEdge" "4200"
    Option         "FingerLow" "25"
    Option         "FingerHigh" "30"
    Option         "MaxTapTime" "180"
    Option         "MaxTapMove" "220"
    Option         "VertScrollDelta" "100"
    Option         "MinSpeed" "0.06"
    Option         "MaxSpeed" "0.12"
    Option         "AccelFactor" "0.0010"
    Option         "SHMConfig" "on"
EndSection

Section "InputDevice"

    Identifier     "Mouse1"
    Driver         "mouse"
    Option         "Protocol" "ImPS/2"
    Option         "ZAxisMapping" "4 5"
    Option         "Device" "/dev/input/mice"
    Option         "AlwaysCore"
    Option         "Emulate3Buttons"
EndSection

#################
#################
## S E R V E R ##
#################
#################
#
Section "ServerLayout"

#     Identifier "Single"
#     Screen    0       "Screen0"

#    Identifier "Multihead layout"
#    Screen     0       "Screen0" 0 0
#    Screen     1       "Screen1" LeftOf "Screen0"
#    Screen     2       "Screen2" RightOf "Screen0"

##########################
#    Identifier "twinview"
#    Screen     0 "ScreenTwin"

    Identifier  "Xinerama"
    Screen      0 "Screen0"
    Screen      1 "Screen1" RightOf "Screen0"

#### COMMON ####
    InputDevice    "Touchpad" "CorePointer"
    InputDevice    "Mouse1"
    InputDevice    "Keyboard1" "CoreKeyboard"
    Option "Xinerama" "0"

EndSection


######################
######################
### M O N I T O R S ##
######################
######################

Section "Monitor"
    Identifier     "DFP"
    HorizSync       31.5 - 60.0
    VertRefresh     60.0 - 85.0
    Option         "DPMS"
EndSection

Section "Monitor"
    Identifier     "LCD"
    HorizSync       30 - 83
    VertRefresh     56 - 75
    Option         "DPMS"
EndSection
                
Section "Monitor"
    Identifier     "TVMon"
    HorizSync       30 - 50
    VertRefresh     60
    Option         "DPMS"
EndSection
Section "Monitor"
    Identifier  "TwinMoni"
    Option      "dpms"
    HorizSync   30.0-81.0
    VertRefresh 56-60
    DisplaySize 752 301
EndSection

####################
####################
### D E V I C E S ##
####################
####################

Section "Device"

        Identifier      "nVidia0"
        Driver          "nvidia"
        Option          "RenderAccel" "1"
        Option          "NoLogo" "1" 
        #Option         "ConnectedMonitor" "DFP-0" # Comment when xinerama
        Option          "UseDisplayDevice" "DFP-0"
        Option          "AllowGLXWithComposite" "true"
        Option          "UseEdidDpi" "FALSE"
        Screen          0
        BusID           "PCI:01:00:0"

EndSection

Section "Device"
        Identifier      "nVidia1"
        Driver          "nvidia"
        Option          "RenderAccel" "1"
        Option          "NoLogo" "1"
        #Option         "ConnectedMonitor" "CRT-0" # Comment when xinerama
        Option          "UseDisplayDevice" "CRT-0"
        Option          "AllowGLXWithComposite" "true"
        Option          "UseEdidDpi" "FALSE"
        Screen          1
        BusID           "PCI:01:00:0"
EndSection

Section "Device"
        Identifier  "nVidia2"
        Driver         "nvidia"
        Option      "RenderAccel" "1"
        Option "NoLogo" "1"
        Option "AllowGLXWithComposite" "true"
        Option      "TVStandard" "NTSC-M"
        Option      "TVOutFormat" "Composite"
        Option      "TVOverScan" "0.6"
#        Option "TwinView"
#        Option "SecondMonitorHorizSync" "30-50"
#        Option "SecondMonitorVertRefresh" "60"
#        Option "TwinViewOrientation" "Clone"
    Screen       2
    BusID       "PCI:01:00:0"

EndSection

Section "Device"
    Identifier "NvidiaTwin"
    VendorName "Gainward"
    BoardName "Ultra/1960 Golden Sample"
    Driver "nvidia"
    BusID "PCI:1:00:0"
    Option "NoLogo" "0"
    Option "TwinView"
    Option "MetaModes"  "1280x800,1440x900; 1280x800,1280x800; 1280x800; 1024x768,1024x768; 800x600,800x600; 800x600"
    Option "TwinViewOrientation" "CRT-0 RightOf DFP-0"
    Option "HorizSync"   "DFP-0: 31.5-60; CRT-0: 30-83"
    Option "VertRefresh" "DFP-0: 60-85; CRT-0: 56-75"
    Option "ConnectedMonitor" "DFP-0,CRT-0"
    Option "RenderAccel" "true"
    Option "AllowGLXWithComposite" "true"
    Option "UseEdidDpi" "FALSE"
EndSection

###################
###################
## S C R E E N S ##
###################
###################

Section "Screen"

    Identifier     "Screen0"
    Device         "nVidia0"
    Monitor        "DFP"
    DefaultDepth   24
#    Option        "UseDisplayDevice" "DFP-0"   
    SubSection     "Display"
#        Viewport   0 0
        Depth      24
        Modes      "1280x800" "1024x768"
    EndSubSection
EndSection

Section "Screen"

    Identifier     "Screen1"
    Device         "nVidia1"
    Monitor        "LCD"
    DefaultDepth    24
#    Option "UseDisplayDevice" "CRT-0"
    SubSection     "Display"
#            Viewport   0 0
            Depth      24
            Modes      "1440x900" "1280x800" "1024x768"
    EndSubSection
EndSection
Section "Screen"

    Identifier     "Screen2"
    Device         "nVidia2"
    Monitor        "TVMon"
    DefaultDepth    24
    SubSection     "Display"

#        Viewport    0 1
        Depth       24
        Modes      "800x600"
    EndSubSection
EndSection

Section "Screen"
    Identifier  "ScreenTwin"
    Device      "NvidiaTwin"
    Monitor     "TwinMoni"
    DefaultDepth 24
    Subsection "Display"
        Depth 24
        Modes "1280x1024" "1024x768" "800x600"
    EndSubsection
EndSection

#############
#############
#############


Section "Extensions"
       Option "Composite" "Enable"
       Option "RENDER" "Enable"
EndSection