I have done this 3 or 4 times now. Congratulations! Nothing more fun than seeing the combined effect of your prints on a display wall. I bought a Fletcher mat cutter, cheap and simple. American Frame is the place to get simple aluminum Neilsen frames. A 22X28 is about 11 and a half bucks. They're easy to assemble and they've got some kind of special going where you get a mat with each frame. Glazing is always a pain in the butt for me because I live in such a rural place there's no cheap close glass. Best of luck and hope you'll share some snapshots of the finished show.