I know the title might be a little open-ended, but I purposefully phrased it that way.

To short-circuit well-meaning but misguided responses, I'm specifically interested in selling crypto-currency directly for some paypal.  I know, I know; I don't need OTHER mis-guided lectures on the risk involved.  I know what I'm getting into. 

What I'm interested in is this; are there any US laws preventing me from selling my bitcoins for paypal cash?  How about state laws?

I'm not a miner, btw - I'm just interested in directly selling some of my btc for cash.