Well, after thinking about this long and hard, I went for the Sena case.
The Pocket Solutions cover-up seemed like a good idea at first, kinda like the Clie' flip covers...but then I thought about it, and, ehhhhh.
I really like the idea of the proporta case aluminum shell , but...no storage.
Reasons why I chose Sena:
No Magnet
Plenty of storage
Slim design (w/no belt clip)
Price
Forum suggestions
Why I didn't choose PocketSolutions cover-up:
Won't latch closed
Single hinge (stupid design flaw. Add one more hinge and they'll double sales!)
Bad reviews from the forum
Why not the proporta case?
Sorage only.
Otherwise, the all aluminum case looks really sweet. Seems like a solid, solid choice if you don't need room for memory or CF Wireless cards.
So, that's my short list of pros and cons. Hope it helps anyone else who may be wrestling with this decision.
ProPorta Case
Sena Case
Pocket Solutions' Cover-Up