Mentioned in another thread that I'm getting a black 3GS in a couple of weeks, so I'm looking for a case. I like the original design of the iPhone so I'd prefer a clear case and one that doesn't add too much bulk to the phone. I'm generally quite careful but a bit of shock protection would be a bonus but not absolutely necessary; maybe just for minor bumps. The main reason I'm getting one is to keep the back from scratching. Any ideas? Thanks.