Re: crazy colors! 100.14.09 with 8600m on macbook pro
With kubuntu feisty 32 bit kernel I got vesa pretty much working out of the box. Just booted to console and changed nv to vesa in the xorg.conf. I used the alternative install cd though because you can use text mode so dont need to worry about graphics settings on the installer. Text mode install will do a fully (or almost fully) automated install for you the same as the live cd. Make sure grub writes MBR to the linux partition also if you are triple booting.
I'm guessing it should be the same for gnome version of Ubuntu. 64 bit I don't know. I tried Sabayon live cd 64 bit and couldnt get it to launch the graphics when the installer needed to, even after following instructions from many sites on the net.