Can't go wrong with a Steelseries QCK if you want cloth. But if you want hard mat I also have a Steelseries 4D that has two hard sides, one ultra smooth and one slightly rough, which is really nice and smooth. I play Quake Live so am pretty picky about my mouse mat, have about 7 of them in the house! I've also got the Boogie pad, but found that to have a bit too much resistance and caused skipping cursor with my WMO 1.1a, so I just use that as a desk mat to put stuff on.