I originally had Sonic DX for the Cube and despite the wonky camera and unpolished feel i had a lot of fun with the game.
About seven months back for $25 NZD I picked up the Sonic compilation for the PC - it has Heroes, DX, Riders and a collection of 2D Sonic games.
I was extremely happy to see that the games ran very well on my PC or at least as good as they did on the Cube.
Steam also has DX right now and I would highly recommend it but I'm not sure what DRM Steam is using - since I got mine hard copy I only had to worry about the standard 'No CD' DRM.
jlg6184: Any idea on how good GreenManGaming's check out is? I haven't ever actually purchased anything from them, and am not really familiar with how well their check out works, not really sure I can skip AvP at that price, lol.
Everything about GMG works exceptionally well and polished with exception of the actual downloading process.
Capsule serves the game like having your burrito and Pepsi whipped at you when you pull up to Taco Bell's Drive-Thru window.