I'm getting my Desire soon, and I'm worried about protecting the phone properly. Specifically, I've heard that people have problems with the camera lens getting scratched because the phone rests on it if you lay it down on its back. Are there any cheap cases out there that can help solve the resting-on-the-lens problem? A cheap gel case off of ebay would be ideal. Also, what other steps should I take to protect the camera lens?