I recently picked up a radeon x1650 pro and it runs CoD4 fine on average settings. Crysis also ran alright, though there were a couple points(at least during the demo) of slowdown.
I'm not sure what the rest of your system specs are, but in addition to the card, I'm running a p4 3ghz with 2 gigs of ddr333, so I would imagine any comparable system would be able to run those games.
The only teeth strong enough to eat other teeth.







