doh
i got a ATi Radeon 9600 w/256 MB

and i run DOOM3 at 1024x768 allsettings HIGH

and i see no problem why things arent going well

just cos u wanna run all games doesnt mean u have to buy the BEST card out there

and flash - a ATi 9800 would be a better buy considering price and performance
in 9800 u can easily get a non pro or a pro and overclock it to XT levels using
RAMsinks and more airflow

enjoy