Rather, Dolphin (The emulator for Wii and Gamecube ) which now has system link support for Gamecube games. So you can now system link 2+ PCs together for Kirby Air Ride, Mario Kart: Double Dash or 1080 Avalanche. You can even go online in Phantasy Star Online.
Or you could link your PC with your actual GameCube. I find this amazing.