Your choices are excellent, by the way, as I understand it for starters....I've played Rayman; my wife loves it (it's weird enough to be right up her alley)...the other two I've only heard about so far, but they receive excellent reviews. My suggestions:
Wii Sports Resort (just because you'll want to expand your options once you see Wii Sports)
Tiger Woods Golf 2010 (in spite of recent issues, the game still rocks)
Resident Evil 4 (the one designed for the Wii)
The Legend of Zelda: Twilight Princess
Metroid Prime 3: Corruption
Super Mario Galaxy, if you like platformers
Super Smash Bros. Brawl
Mario Kart Wii
NHL 2K10 - if you're a hockey nut; the game has a high learning curve IMO.
Hasbro's Family Game Nights (probably the first over the second)
WiiWare Games you'll want to try out, once the internet is connected:TV Show King 2
Lost Winds and Lost Winds: Winter of the Melodias
Pokemon Rumble
Rubik's Rush
World of Goo
That ought to keep you busy for a while..........

By the way, I took over editing the Wii friend list from somunney some time ago, so if you'll send me your Wii Friend code, I'll add it to the list.