BooYah!
http://www.kennyspennies.com/c4.php
Give it a try, it's fun. We call it C4 and yeah, we think its "Da Bomb!"
(sorry, could not help myself... flashed back to 2003 with my expressions there for a minute) 
then sign up to
Kenny's Pennies to make money with it
C4 versions coming soon to
Radical Cash and
Bittie Bucks