Stevecan, the saws you have mentioned are both fine saws. When you get tools that are comparably priced, pretty much boils down to features. Only you know what you like. Play with them both. I have found it helpful to download the manuals (Ridgid) to see how the item is calibrated. If I can see that the tool can be "tuned" for accuracy fairly simply, that's always a plus. This could/would prevent a problem like George had with his Craftsman.
Bottom line, it's your money. If someone were to give me either one I'd be very pleased. As Daniel mentioned, Ridgid makes good stuff. By the way, a little bird told me that Ridgid will soon be coming out with a 12" sliding compound miter saw, if that's of any interest to you.
