[quote name='me2evil13']I'm looking at buying a used wii, do you think that i have to worry about any hardware issue? Also what are some most have game for the wii, I'm going to get mario kart when it comes it.[/QUOTE]
I don't think there's anything to worry about in terms of the hardware, as long as the place you are getting it from has a decent return policy..like say, at LEAST 90 days. Since it's used, you won't have any warranty from Nintendo (at least I don't think you would), so it's best to find out of they have any type of 1-2 year warranties that they offer, just in case.
As for games, check [thread=162819]this thread out[/thread]. It should provide help, plus you can ask for recommendations there.