I bought
this TuneWear Prie iPod Wallet 1.5 years ago and have never looked back. A colleague (whom I did not know back then) has this same wallet, he bought it about US$10 less than I did a few months after I got mine. Should be cheaper now.
It comes with a free TuneFilm, which is a rather hard plastic film covering your iPod. It tends to catch dust inside with mine, so be careful when applying.
Completely reusable, but get a fingerprint on it and it's almost going to be permanent there (as per other film products). Or maybe I'm just bad with cleaning...
The wallet itself is sturdy with a hard backing, not at all flimsy, and I often wonder how I went an entire month before it was released. It does not look exactly "pretty", but it looks pretty swanky (probably more so with a white iPod in it; mine is black, black iPod and black leather). I never felt too much of a pang of pain in my heart when I accidentally drop my Precious (name of iPod) in its casing versus when I drop it in its iPod sock
A picture of my Precious in its casing back in early 2006. It looks exactly the same, except I don't use that earphones anymore and the cable is not exactly as sparkling white as it was...
Hope this helped!