I think the Wii Sports Package will be good for arm definition, at least in my right arm X___x I'll have to learn to play left handed. I am anxious for this:
Wii Fit
I kinda want this, just to try it out, but it does seem rather pointless. There's this YouTube parody of the commercial for it here:
Wii Fit Parody
I tend to agree with this Sarcastic Gamer. He makes some valid points. As for me, I dont have time to go to a gym or even make dinner most days. So I'm sticking with Wii Sports.

Its a great console, but I'm going to also be using Dance Dance Revolution to get a better cardio work out.
