My buddy has the Wii and we played that on New Years Eve.....that wasn't a very good idea
I agree my hip and my arm were sore the next day because of Baseball and Bowling.
I have a 60gb PS3 and I got rid of my 360 (Gave it to my buddies kids for christmas because he passed away in a truck accident on Dec 5, 2007. So I gave it to his 3 kids for christmas because I hardly played it....I even gave them Halo 3).
I thought about getting a Wii but I wasn't for sure on how much I would play it....I'm more into graphics, gameplay, and online use. I can't wait till Battlefield: Bad Company comes out for the PS3 June 23rd.