If you want to spend the money on an expensive quiver the Fuse Katana gets my vote above all.

If you want a quiver that is reasonably priced then the Treelimb is, IMO, one of the best on the market in the 25 - 35 dollar range. Slides up and down to acomodate different length arrows so they don't stick out past the bottom cam. It rotates so you can position the quiver straight up and down or angle the arrows toward the shooter so they are a bit closer. It also has a hanger built on the quiver so that you can easily hang it on a branch or use the included Ameristep hanger.

http://www.treelimbproducts.com/products/treelimbquiver.html