I've got plenty of "cool tools", including the saw you referenced here. However, 99% of the time I make cuts with either my Zona razor saw and a miter box, or a razor blade. It's quicker and I get better results than with that power saw
IMHO, if you want to make a good purchase for kit building I would recommend a Zona razor saw set and a miter box. I have a place in my tool box for the Zona saw, but it is NEVER there because it doesn't leave my workbench long enough to be put back in the toolbox!! by this I mean that I am always using it when I'm building. As for the Harbor Freight circular saw, it stays in the bottom of my tool box and rarely comes out
http://www3.towerhobbies.com/cgi-bin...XLJ20&P=ML
This would be a much better investment than a circular saw.
Ken