Tommy on This Old House has been using a Festool track saw for a few years now, and I salivate every time I see it. He has a whole bunch of Festool equipment, most of which has the vacuum attachment to seriously cut down on sawdust.

A boy can dream...

I currently have a DeWalt circular saw, so I'll have to look at that Kreg thing you linked to, John. I had been meaning to look for some sort of straight edge to use as a table saw replacement, because I don't have the space or money for a table saw But I could drop $25 on a distant facsimile that requires a bunch of offset measurements