Oh missed one. The mouse wheel. K open back up your /etc/X11/xorg.conf (the file we just edited). Look for this:
Section "InputDevice"
Identifier "Mouse0"
Driver "mouse"
Option "Protocol" "IMPS/2"
Option "Device" "/dev/input/mice"
EndSection
And make it this:
(the lines to add have an ***)
Section "InputDevice"
Identifier "Mouse0"
Driver "mouse"
Option "Protocol" "IMPS/2"
Option "Device" "/dev/input/mice"
***Option "Buttons" "5"
***Option "ZAxisMapping" "4 5"
EndSection
Now I don't know what your protocol is, but for me it is USB and by default with that the protocol is set to auto, so make sure to change that to "IMPS/2" if neccesary. Then just restart X and you are good. :-)
-onelung
ALSO: As for the mouse sensitivity, you got me!!!