I have a couple of physicians that it seems like every week they break their OEM cases right at the belt clip. Does anyone know of any good cases that have a better clip on them (read: not as easy to destruct) than the OEM cases as I'm tired of having to replace them every week.

I use a Fortte case. I have had like 4 different ones without any problem.

Leather PDA cases, PDA case - Stylish Elegant Functional leather PDA cases and handheld cases by Fortte.

I use the case-mate case and holster combo for my Curve that seems to work well. Check it out!