I am not sure if most people have heard of this site, as I found out about it on Fox Sports Radio. When you join you receive your first dime and you can bet on games just like in Vegas. As you build up your winnings, when you get over $10.00 they will let you cash out for real money. This is legal because you are not gambling, since they give you your first stake, it is like a prize. Here is a link if you want to check it out. I just started this weekend with all the conference championships, and it has been a blast.
http://www.centsports.com/?opcode=46910
http://www.centsports.com/?opcode=46910