I have done a good bit of filming with my buddies GL2, and I am looking to get my own camera. This is purely to make DVD's for my own personal fun. I will be editing with a regular mac. Should I get a GL2, an x1a, a sony, or should I get a $600 one that weighs 1/3 of the prosumer ones, and have optical zoom up to 40x. HD or not? How do these smaller lens do in low light. Basically, I'm asking what you would buy. Specific models and why. Thanks, G