I like
www.Demonoid.com. Private tracker. Descriptions. Comments. IMDB links
If you're looking for recommendations, check out
http://www.sceneratings.com/ They have the latest torrent releases with a quick overview.
If you're in a jurisdiction where the RIAA, MPAA or their international equivalents prosecute with the zeal of a Spanish Inquisitor, check out
http://phoenixlabs.org/pg2/. Actually PeerGuardian would be useful just to avoid bad torrents as well. They're beginning to cross post torrents with bad file parts. If you block them from the get go you don't have to keep downloading bad file parts till you find a good one.