GC controller works best for SSBB but I found playing it with just the Wiimote + nunchuck works.
For Wii Sports, all u need is 1 extra nunchuck for boxing so You could get 3 Wiimotes + 1 nunchuck and be fine. Or Get Wii Play + 2 Wiimotes + 1 nunchuk.
I havent played SMG but for co-op, I think its the same thing. 2 sets of Wiimotes + nunchuk (so just 2 nunchuks!!!)
Zelda is a 1 player game, so just 1 wiimote and nunchuck
Metroid i believe is 1 player so same thing, 1 wiimote and nunchuck.
May I recommend Mario Kart Wii? All u need for that game is 4 Wiimotes.
So my final advice: You can get through alot with 3 Wiimotes + 1 nunchuk. So thats $140. If u get Wii Play its $150 since it comes with a Wiimote. So in total w/o games its $400 + tax for the controllers and Wii system. For the games you;ve mentioned, you could get them used and save some money. All up to you. Maybe you could get some used accessories but thats up to u.
Above I'm a proud Gran Turismo fan, not a Sony fanboy, and now a proud 360 owner, but sharing xbox live accts ATM
End of 2009 Predictions (made Jan 1, 2009): My predictions were pretty accurate, the 360 was over and the Wii was just under.
Wii: 65 mil (yea I'm crazy) 360: 35 mil (its getting there) PS3: 30 mil (the slim better do well)
End of 2010 Predictions (made Jan 7, 2010):
Wii: 81 mil 360: 47 mil PS3: 45 mil
