The problem with these solid-state cameras is that the video footage is very fragile. By that I mean it is heavily compressed and quickly falls apart when you start editing. I imagine the problem is exacerbated when using the newer HD models of these cameras – most of them still seem to be using about the same bandwidth to record their footage (note: this is purely from what I have read; I have no hands-on experience with the new HD cameras).
As far as I know, there are no cheap solutions that produce robust video footage that can withstand any serious editing. The only solutions I know are DV tape (delicate, quite pricey) or high-end solid state (very pricey).
-j