This site had some stuff for a lot of HTC phones. I actually purchased something from here before, but just can't remember what exactly (for my Mogul).
http://www.4ustuff.com/product.php?f...e=&order=id_no
Here is also a leather belt clip they have available (I know Not_A_Stain was looking for one). Not the best, but I'm sure there will be more later on.
http://www.4ustuff.com/info.php?itno=3286