It's time to buy it for PC if you haven't already. First off it's down to 20 bucks, secondly it has been patched enough times by now that it runs fine on average systems. I know this for a fact since it runs on my wife's machine which only has a low end dual core proccessor. Lost and Damned was a worthy expansion and Gay Tony is as well, both of them have enough content to warrant them a full game. The single player in Lost and Damned took me close to 20 hours and that's without doing a ton of side missions. How many expansion packs could claim that. GTA4 PC is the best way to experience the game and if you are still a hater of Games for Windows Live get over it, it's non-intrusive and runs just fine in the background.
"When all thats left is console gaming, I will game no more."