I went the cheapo route. Got it at Wal-Mart. It's a Timex replacement strap. I was considering 3 of them and I went for the bottom one. It's just $15 CDN.
The finish on the strap, which is brushed stainless steel, fits in perfectly with the Gear 2. It's a bit cheap feeling and a bit too narrow for my tastes. I like the clasp as it reminds me of the one on my Rolex. Because the Gear 2 is so big, vertically, I had to remove a few links on the strap. It's a bit of a pain on this Timex strap. Especially compare to my Rolex which uses screws.
It doesn't feel very solid at all. But compare to the original strap this things is just so much more comfortable. Especially around "boney" wrists like mine. It doesn't move around either, it's well planted. It's also very light which is a good thing. This thing is much lighter than my Rolex submariner.
So there you have it; a $15 metal strap. Looks better than the plastic one, feels better, a bit of pain to size it up properly.
PS: Thank you to Samsung for making the strap so easy to remove! I can swap straps in less than 5 minutes!