Lots of prepaid cards nowadays come with "direct deposit" info, meaning that they'll usually let withdraw funds from paypal when you add it as a checking account. I recently added one to paypal (accountnow.net) and paypal will let me withdraw money to it but it won't let you verify your paypal account with it. It's like paypal checks the info against a database and knows that its a prepaid card. I'm sure different cards provide different results but that was my experience.