Got Stalker Call of Pripyat running at full HD res in steam via WINE (Ubuntu studio 10.10) with latest AMD driver from restricted driver tool.
Theres a couple of strange things, cant see the guns, but can see the knife. The Game claims its running quite high details, but doesnt look it. But it appears stable and sound works fine, fps seemed ok - not measured it though.
Just to add im using Play on Linux to launch steam.
Btw is there a tool that will measure FPS in all these games/apps?