Here is my 2 bobs worth.I bought a Oregon Scientific ATC2K a while ago and thought it’d be ok considering what I paid for it[Under $200].My first problem was that you dont know where it’s aiming so I got some awesome footage of my front guard at first :S .I mounted it on the jaw bar of my helmet and it was a bit fiddly to turn on/off.The quality of the footage is average at best and it seemed to shake around too much for my liking.Another problem I experience is that the battery seems to lose contact and thus the camera turns itself off>Not good when you think you’ve filmed something good only to find out youve got nothing :angry: Sound quality is shite 
I noticed that Ogegon scientific now has a ATC5K that has a small screen at the back which would take the guess work out of aiming it.It also has a remote which means you can turn it on/off without having to touch the camera[best feature yet I reckon]
In saying all that I have watched video from the Go-Pro and would have to agree that the quality is heaps better as it has a lot wider field of view and doesn’t seem to shake as much as mine.
As Ollie stated the POV-1 looks like awesome quality video and it looks tough as nails,but you have to carry the unit in your backpack which could be a pain in the arse sometimes.$1000 is a lot of money and it’s money that I dont have.
Here is a review I found on youtube comparing most of the units I just mentioned.
http://www.youtube.com/watch?v=PG5HZuRKLvg
Cheers
P-Dub