I just got a used Inspire that came with a Speck Candy Shell case in a lovely sewage gray....
For just a cover its not too bad. Hard to get on hard to get off, but the fit is nice and snug. I think I will eventually will look into an Otterbox Defender. I have one for my Tilt 2 and a Sammy Infuse and I swear by them.
I have read a few reviews the Otterbox Defender for the Inspire/Desire has a bit of a habit of partially coming off while pulling it out of pockets, etc... The one I have for my Infuse seems to be made out of a hard rubber. Hence its a bitch to get on/off, but I do like the harder material. I think Otterbox did a due-over with a softer silicon base rubber. The catch is it does come off easier... I was also told is a hair puller.
I have dropped my Infuse on my concrete garage floor twice with no damage. Im 6.0' tall.
HTC Inspire / GB 2.3.3
Rooted. Stock AT&T ROM. (No Data-Plan)