I don't know if you've already purchased your Canon GL-2 yet, but I also thought about buying one last year before I
looked around and read about some of the features and advantages of other three chip camcorders, particularly the Sony VX2000. I have since purchased a VX2000 and am very happy with it. I did some research on some of these prosumer camcorders and found out that the Sony VX2000 has larger ccd chips than the Canon GL-2, and larger chips means more resolution and sharpness, not to mention better low light resolution.
I'm not knocking Canon or any of their cameras as I know they make very good high quality gear, but when you're looking around for the best value for your dollar, especially in the price range of three chip prosumer camcorders, I prefer Sony myself. Now I know Canon makes camcorders that outdo the Sony VX2000, but you're talking about going into the 4, 5, or even $6000.00 range.
If you're in the market for a good 3 chip prosumer camcorder, do yourself a favor and check out what else is out there before you lay down big bucks.
Good luck, Tunes Man.