Bioshock is awesome. It was developed for both the PC and Consoles at the same time by two different companies iirc, so it's not a port.
It might not be a port, but IIRC the developers forgot to lift the cap on the frame rate for all physics objects after locking it at 30fps for consoles, so if the rest of your game's running at a significantly higher frame rate on PC, you'll notice a bit of stuttering --nothing game changing, though-- when kicking barrels or whatever around.
Painkiller? It's getting on a bit now but it's pretty cool for some mindless running and gunning.