Oh, don't get me wrong, I'm not saying all wireless mice lagg, I'm just saying I've had experiences where they do. The last time I owned one was 6 months ago, and it was OK for a while but it lagged every now and then (not major laggs, just noticeable), and I had a look at the G7, and yeah I agree with you Sport1031, it does look good for a wireless.
But like you said, I'd want a laser mouse ultimately!