Magic Music Visuals

Hi! First post here! Hope to learn from the pros!

I want to use a wireless web cam with magic on a Macbookpro 2010. Wich webcam should I use?
The smallest and under 100$ us.

Thanx!

To be honest I'm not up-to-date on what's out there, but this user's post might be helpful: viewtopic.php?f=2&t=1226