Remember when X.com started up and was paying people left and right to sign up? Here's a newcomer doing the same:
http://www.revolutionmoneyexchange.com
You get $25 in your account for signing up, and very quickly, too. I've heard from a number of people who have already signed up and had no problems.
You do have to supply your SS# to sign up to begin with, and of course if you want to get your money via bank transaction, you have to provide your banking info. You can get your money via a check for a $2.50 fee, I'm not sure if you have to provide bank info if you get the check or not.
They also offer no-fee selling services if both parties are using RME - basically, like if you are using PayPal and using existing funds to pay someone. They also offer payment buttons you can put on your site - you have to be Premier member at PP to get the payment buttons.
You have til 4/15 to get the $25 sign-up bonus, so if you're interested, don't dawdle.