I want to get a laser cutting guide for my Dewalt 12" sliding compound miter
saw - I've seen a couple different brands on the net, one from Rockler's
(Avenger) for $57.99 and another from SevenCorners.com (bladepoint) for
$59.88. They both say easy to install. Is there any great difference in
brands, quality? Are there any safety issues involved?

I saw my first laser guide in person a couple weeks ago, a friend of mine
had one on a jobsite on a Hitachi miter saw (it came built into the saw) and
I thought it was the coolest thing I've ever seen. I don't have any depth
perception and I'm always doing the squat,
lower-the-blade-and-look-where-it's-going-to-cut thing, and this seems like
a tremedous time (and knee) saver. Thanks in advance for any and all input.

Tony