I've got 3 cases for this phone at the moment: The Case-Mate Pop Case ($35), the Incipio Feather Feather Ultralight ($21), and the AGF Magnate ($35).
Each had something I really liked.
I loved the stand with the Case-Mate. It had a nice feel to it, but it was a little too heavy and bulky. The rubber sides also made it stick to my pockets a bit.
The Incipio is super thin and sleek, but didn't really protect my phone. It's not an "every day" type case for me.
The Magnate case is light and pretty darn thin. It's got a complete wrap style, so it offers protection if dropped from any angle. It's got a nice feel to it, the only gripe I have is the power button is a little tough to press and takes some getting used to. This case costs $35 in the store, but I got it for $15 shipped from Amazon.com.