I would say get the XBox at Gamestop or something. That's the easiest and cheapest way, at least that's what I think. And for the Wii(knowing how much Gamestop loves to rip you off on trade-ins) about $125 or $150
they may not be too cheap but they come with controllers and games and the best part is if it breaks they will give you a free one and you dont have to send it to microsoft and wait like 2 months for it to come back
(im no fanboy as i own bothe consoles and love both) ps3 cus dvd is on the way out as its being replaced by blu ray. so once dvd is gone xbox is gone therefore u wasted money. about the wii they should pay u to play that piece of shit.