Gamespot
IGN
Some notes of interest:
Wii: $250
Wiimote: $40
Nunchuck: $20
Wiimotes and nunchucks are purchased separately
1st-party games: $49.99 or lower
Wii Points (for VC/WiiConnect24 purchases): $1 = 100 points
NES games: 500 Wii points
SNES games: 800 Wii points
N64 games: 1000 Wii points
Opera web browser: must be purchased with Wii points
Mii Channel: your personal avatar/settings which are saved on your wiimote which you can take over to a friends house and still use your settings.