Okay, I've got a helmetcam. Now I need a camcorder. Problem is I know nothing about these things. Don't want a high end unit that stands a good chance of being submerged in a failed attempt at a deep water crossing or getting smashed to bits on a tree or rock somewhere. Don't want a super cheapo unit that has lame playback picture / sound quality. Size and ease-of-use, not to mention $$$, are major factors currently under consideration. Anyone have experience with Hi8 vs. 8mm? Recommendations? Thanks in advance!