Ok simple question i have been waiting for well over a year now for macvidia to come up with a driver my nvidia graphics card but they haven't and so im going to buy an ATI card but i don't know what ATI cards will give me QE and CI.

you don't have to buy an ATI card, nvidia cards now work on osx
i tested fx5200 and works
search for natit or titan method

like som3on3 said... Nvidia cards work great! Try a nvidia 7900gs with Natit dual .02... dual monitors and everything. If you do go ati route, I know jccool works with x1900's

Ok thanks, shows how long i've been away from the osx x86 world. What version of the OS do i need then? and i read that Titan only works with SSE3 cpus which could cause me problems as i only have a P4.

wat p4?

i have a p4 and i have sse3....

edit

ok it's 2.4ghx northwood and according to cpu-z it has SSE and SSE2 but not SSE3