I did some more research last night and decided to go with cardpool, as they have the highest reviews online, and are backed by the Better Business Bureau. Oh, and the total gift card amounts were 100 pottery barn, and 250 for Saks on 5th avenue (either of which I don't ever shop at, so what the hell might as well offload them and put the money to good use elsewhere). And yes, they offer a 6% increase for exchanging for Amazon gift cards.