Gaming HUGE SSBB Tournament Need Help!

[xcrimsonstormx]

So my church is wanting to have a HUGE SSBB Tournament for guys night and we are needing about 3 wiis and I was just wandering if you could nice me some good accessories and tips about game play that would help we are expecting anywhere from 20 to 40 people playing, so any tips or suggestions on how to set it up or how to play would be great. Ohh and we are using the Wii version of the game.

Thanks!!
(Sorry for Punctuation)