poly sleeves for steelbook blu-rays?

Can anyone point me to some good re-sealable poly sleeves that will fit over a steelbook blu-ray and regular blu-ray with a slipcase? I haven't been able to figure out what will fit right. I had Bags Unlimited send me a sample of one I thought might work, but its too small, just barely fitting over a regular blu-ray case with no slip. I have looked at a thread at blu-ray.com, but the collectors there seem to favor hard cases that are basically plastic boxes. They're too expensive for what I'm looking for.

If there is a link at Amazon or Bags Unlimited someone can point me too that they use to protect standard steelbook and blu-rays with slip cases, I'd very much appreciate it.