Seidio has a rubberized black case that clips to the two pieces of the phone, unlike most cases where you have to open it to slide the keyboard out. It's slim, it gives grip to the phone, and they even sell a belt clip with SD card slots made for use with the case! Cell phone accessories, as a whole, (coming from a guy who used to sell Sprint) are pretty terrible, no quality, never works right, never as promised. Well I think this product actually is pretty good.
http://www.seidioonline.com/index.as...ROD&ProdID=519