I purchased a leather flip case from
Vaja Cases awhile back for my old Q. (I now have a Q 9c with Alltel, and the case works quite well for it, too.) They also offer a non-flip version (which, in hindsight, I wish I had ordered), starting at $60.
Once you have chosen your style, you then choose from as many as five different leather types, a vast array of color schemes, belt clip (or not) ... you can even personalize it with text or a graphic.
I first purchased a Vaja case for my old HP iPAG 1940 PDA years ago. It was absolutely the best case I've ever owned. The leather completely protected the PDA, and it aged rather nicely.
I have no link to Vaja other than being a satisfied customer.