http://lajo.biz/
I just ordered from them last week. It's too bad they don't have a glow in the dark white one like iskin. But their selection is MUCH bigger.
Right now if you buy a exo skin for 17.50, you get a exo3 skin for free(9.50).
They're barebone though, so you have to buy a belt clip and metal stub for the exo, and a bungee for exo3 (you don't have to, but they're nice to have)
But with all of those combines, plus shipping, the total for me is only around 33 dollars.
Plus if you join their key program, you get instant $5 dollars off.
site not compatible with firefox i dont' think.
(to join the key program, just click on the word "lajo" on the banner at the top of the page. Enter an existing key member's name [mine is "wontonsoup" =p ], then create your own account. Instant 5 dollars for you to use anytime you want. When you get ppl to sign up, you get 2 dollars added to your account I think)