I also have and like the Bear Motion. Nice feel. Only thing I notice is that there is not a lot of area to press the power button (the case kind of crowds that area), even though you don't need it that much, but when you do, it takes a bit more effort.
In the online photos, this looks a lot like the simple, cheap Diztronic case I used for a while. That case is nice and minimal, has a decent feel, and the buttons work fine.
I then tried a simple, cheap bumper I bought from Ebay and that worked great too.
Now I'm just using the phone without a case. I carry insurance on it for what I consider to be more likely problems given my usage: water and theft/loss. The insurance covers all hazards, so I'll just take my chances being careful with the phone. From the specs of the phones materials, I'm pretty comfortable with the toughness.
If I need actual protection from time to time, I'll put the Speck case back on it. I didn't like the bulkiness or slick plastic which also got realy scratched up - but it's a very smartly designed case with a lot of protection for the size/weight.