Mine

Section "ServerLayout"
        Identifier     "single head configuration"
        Screen         "Screen0" 0 0
        InputDevice    "Mouse0" "CorePointer"
        InputDevice    "Keyboard0" "CoreKeyboard"
EndSection

Section "Module"
        Load  "dbe"
        Load  "extmod"
        Load  "record"
        Load  "freetype"
        Load  "glx"
        Load  "type1"
EndSection

Section "InputDevice"
        Identifier  "Keyboard0"
        Driver      "kbd"
        Option      "XkbModel" "pc105"
        Option      "XkbLayout" "fr"
EndSection

Section "InputDevice"
        Identifier  "Mouse0"
        Driver      "mouse"
        Option "Protocol"     "ExplorerPS/2"
        Option "Device"       "/dev/input/mice"
        Option "Buttons"      "7"          # adding this enables the extra buttons on the MX700
        Option "ZAxisMapping" "4 5"        # adding this maps wheel scrolling events to mouse buttons 6 & 7
EndSection

#Section "InputDevice"

#       Identifier  "Mouse0"
#       Driver      "mouse"
#       Option      "Protocol" "IMPS/2"
#       Option      "Device" "/dev/input/mice"
#       Option      "ZAxisMapping"          "9 10"
#       Option      "Buttons"               "10"
#       Option      "Resolution"            "800"
#       Option      "Emulate3Buttons"       "no"
#EndSection

Section "Monitor"
        Identifier   "Monitor0"
        VendorName   "Monitor Vendor"
        ModelName    "E-Yama"
        HorizSync    80.0
        VertRefresh  75.0
        Option      "dpms"
EndSection

Section "Device"
        Identifier  "Videocard0"
        Driver      "nvidia"
        VendorName  "Videocard vendor"
        BoardName   "nVidia NV40 GeForce 7800 GT"
        #Option      "RenderAccel" "true"
        #Option      "AllowGLXWithComposite" "True"
EndSection

Section "Screen"
        Identifier "Screen0"
        Device     "Videocard0"
        Monitor    "Monitor0"
        DefaultDepth     24

SubSection "Display"
        Viewport   0 0
        Depth     16
        Modes    "800x600" "640x480"
EndSubSection

SubSection "Display"
        Viewport   0 0
        Depth     24
        Modes    "1280x1024" "1024x768" "800x600" "640x480"
        #Option      "backingstore" "true"
EndSubSection
EndSection