there are tons of ways to turn bitcoin into cash. Mostly, the cost depends on how anonymous you want to be. If you dont care about anonymity, then transfer your money on mt. gox to your dwolla account then to your bank account, this only costs .25 cents plus mt. gox fees which are about 1/2 percent. Or go thru Liberty reserve and you could be spending between 7-10 percent. But, you have many more options and have the opportunity of being somewhat anonymous.