It's really tough to find a good one - not all of them (the Otterbox in particular) are compatible with the Verizon version, so you need to be careful. Make doubly certain that it's VZW compatible before you commit.

So far, I've tried the InCase slider (from Verizon). Didn't like it because it made my screen protector bubble.

I've also tried the iFrogz Luxe Lean. It's OK and compatible with the screen protector, but it doesn't offer a whole lot of protection (it pops off the corners too easily).

I now have a Seidio Innocase II on order. Supposedly it is compatible with screen protectors - and if it's anything like my Seidio Innocase for my Droid Incredible, it should be very protective as well.