Mine

Section "Module"
    Load        "dbe"  	# Double buffer extension
    SubSection  "extmod"
      Option    "omit xfree86-dga"   # don't initialise the DGA extension
    EndSubSection
    Load        "freetype"
    Load       "glx"
EndSection

Section "Files"
    FontPath   "/usr/share/fonts/misc/"
    FontPath   "/usr/share/fonts/Type1/"
    FontPath   "/usr/share/fonts/100dpi/"
    FontPath   "/usr/share/fonts/75dpi/"
EndSection

Section "InputDevice"
   Identifier	"Keyboard1"
  Driver	"kbd"
    Option "XkbRules"	"xorg"
    Option "XkbModel"	"pc101"
    Option "XkbLayout"	"us"
EndSection

Section "InputDevice"
    Identifier	"Mouse1"
    Driver	"mouse"
    Option "Device"      "/dev/input/mouse0"
    Option "ZAxisMapping"   "4 5 6 7"
    Option "Emulate3Buttons"
EndSection

Section "Monitor"
    Identifier  "Envision"
    HorizSync   30 - 83
    VertRefresh 75
EndSection

Section "Device"
    Identifier  "Geforce 6800"
    Driver      "nvidia"
    Option	"RenderAccel" "True"
    Option	"NoLogo" "True"
    Option	"AllowGLXWithComposite" "True"
EndSection

Section "Screen"
    Identifier  "Screen 0"
    Device      "Geforce 6800"
    Monitor     "Envision"
    DefaultDepth 24
    Subsection "Display"
        Depth       24
        Modes       "1280x1024" "1024x768"
        ViewPort    0 0
    EndSubsection
EndSection

Section "ServerLayout"
    Identifier  "Simple Layout"
    Screen "Screen 0"
    InputDevice "Mouse1" "CorePointer"
    InputDevice "Keyboard1" "CoreKeyboard"
EndSection

Section "Extensions"
Option "Composite"
EndSection