This link should help you out. They have a ton of Toyota OEM parts in stock, including different brake pad sets ranging from $33.00-$68.00. Pads for ABS equipped vehicles are also available.
Unless you have ABS, and the manual reccommends a specific brake pad, you can get them anywhere else besides the dealer. Anyone that has ever gotten parts from a dealer knows they dont like that, its lost revenue for them to do the work. If a person can eliminated the dealer part of everything, life would be better.