M.A.R.I.O. G.A.L.A.X.Y. Get it right away. Haven't played a better game than that in ages. It's really that good!
If you have wireless internet in the house, be sure you connect the system. Not only for the different updates, but also for the various Channels that Nintendo makes available. Most of them are free, and they add cool little extras to the system for the family to play with.
My only advice would be the wrist strap. Absolutely insist the kids use it at all times. They will forget, some will think they don't need it. All it takes is a moment of non-use for that thing to fly out of their hands and believe me, it can do a LOT of damage.
You shouldn't if you look around. You might pay a little more but it beats driving all over Houston at 4 am. There are hundreds of listings for Wii systems, you might actually find a good deal. Keep a close eye on Craiglist too: http://houston.craigslist.org/search/sss?query=wii
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