Best Place to sell/Trade used DVDs??

[Matt X]

Just Picked up a PS3 over the weekend, freakin' rocks to be brief - But it looks like it's time to repeat the cycle, which is to search out good places to sell/trade used DVDs, pick up a little cash to help replace them w/ BD. Last time i went throught this was for laserdiscs (anyone remember them?)! I didn't have a whole lot of LDs, but I'd say I have at least 50 DVDs I'd consider selling/trading so's I can pick up BD versions (Sleepy Hollow, Matrix trilogy, Payback, LOTR (spec. ext. ed. only!) are prime examples)

Any advice would be appreciated.