Just checked ATT and they have a couple of new cases, including one from Body Glove and Case-mate. I'm actually just waiting to see if they come up with new ones, one from otterbox would rock. But they are a bit pricey so hopefully for the holidays they'll lower their prices =/
Silicon skin case are made of high quality material and i had silicon skin case on my samsung. It provide great protection to my device without adding any bulk.