Thanks guys, I've been working on documenting all of my jigs in my "spare time"
Like Chris says, it's aluminum and can be cut with woodworking tools, but it'll dull them. I used a non-ferrous metal cutting blade in my chop saw to cut it and an old, junky file to smooth the edges.
As for where to find the track, I bought two server racks at a going out of business sale. Rockler has something similar, but they're definitely not cheap.