Read this: http://whiteelephantmedia.com/
PayPal like the mafia extorted half a million dollars from this company and then after getting it, froze their account and stole all their money.  Something like one million dollars.

You could get a merchant account, but such processor could freeze your account.  Tradehill had their payment processor steal $100,000 this way.

The only real way for dealing with payments is bitcoins!