I hear you can get pedals in the MTB Marketplace above.. cough, cough..

But seriously, what kind of pedals are you looking for? SPD, platform or other types. I have a set of Shimano SPD m520's in the Marketplace if you are interested. If not just check out any of the online stores or your local lbs. There should be many to choose from. I personally like SPD's for mtb's. It's easy to clip in and you can still walk around in most of the shoes.