IGN’s posted the first look at the PC version of GTA IV, as you can see here.
From the piece.
The overall game will follow the same story as the console version, tracking protagonist Niko Bellic as he descends further into Liberty City’s underworld. The nice thing about the PC version is the game will constantly be recording what’s going on. So if you pull off a particularly epic car crash or string of kills, you can hit a key to get the game to pull up the last 30 seconds of gameplay either in single or multiplayer modes.
Full thing through the link.