GoPro is the world leader in wearable HD cameras. You can strap a GoPro camera to almost anything, from the top of your ski helmet to the tip of your surfboard. The result is amazingly visceral, high definition video that gives viewers a front seat to the action. …
Sierra Trading Post – GoPro Highlights Video – 2010
Click PLAY or watch it on YouTube.
Amazon – GoPro HD Helmet HERO Camera ($299.95 right now)
Yesterday we tried one out cycling in snowy Saskatchewan. Worked well … until the batteries died in the cold.
UPDATE: Frank has tried many different models. He feels right now the best of the best is the Contour GPS Full HD Helmet Camera.
besthike.com 
Although Go pro is a really good product, I would definitely recommend you take a look at the Contour HD 1080 and now the new one with GPS included. Have been using professionally and leisurely Go pro, Contour and lately the new Drift 170 HD. They all have some good points and some weak points but the Contour remains the best of them. I am using in many different environment ( High altitude in Nepal, desert in the Shara and Atacama, very cold in the YUkon. Entire satisfaction. I really enjoy the Drift 170 HD as well but the 30 frames\s is not comparable with the 60Fps offers by Contour. In term of quality all of them are comparable, it is more the way you can set up everything, the reliability of the battery and the number of GB they accept that decide for one or the other. GO pro used to be my favourite it is not anumore. The market is in constant evolution and more feature are coming with the Contour and the Drift… worth a look at them !
Thanks frank. I’ve updated the original post with your recommendation.
I bought this HD camera to replace a VholdR Wearable Camcorder (Black) which didn’t survive getting run over by my SUV. The Hero is a well constructed camera, very solid feeling with quality construction.
Pros: The camera has four modes – video (in several resolutions), still pictures, self-timer still pictures, and interval photos (pictures every few seconds). The lens gives a tremendously wide wild view which is nice for HD’s 9:16. It will shoot 1080p, 960p 720p (at 30 and 60 frames per second), and 480 (at 60 frames per second) line resolutions. It uses standard SDHC memory cards and has an internal battery which recharges via a USB cable. The recorded audio is very good both inside and outside of the motor sports waterproof case that came with my kit. Video is relatively good, not as vivid as a dedicated camcorder but the resolution is good. My kit came with a variety of mounts and a suction cup mount for windows and car body use. The waterproof case comes with two backs, one that is watertight and one that is not for better audio when waterproof use isn’t required. The kit comes with connectors for connecting the camera up to an HDTV monitor (component video) or a TV monitor (composite video). A neat feature in the menu is that you can flip both the video and still photos so you can shoot with the camera upside down without a problem.
Cons: The quick release mounts have a bit of wiggle to them. The back of the waterproof case can be difficult to lock closed. The menu system is a bit troublesome to use as there are only two buttons and three LCD characters to use. Once set you’ll not have to go into the menu very often.
Future: There’s a connector on the rear that GoPro plans on using for an external battery or a monitor. Neither are available at the time of this review but they are being worked on.
In use on the trail the mounts worked very well. I used the suction cup primarily to mount the camera to my windshield, bumper, side body panel, and side window. Across rugged rocky trails the camera held firm and the video came out very well. The simple interface was easy enough to use. One button to turn the camera on and select the mode and another to stop and start the recording.
I do video production and photography for a living and also into motorcycling and water sports. I had considered one of these cameras, but figured I would be disappointed in the quality. I had a coupon and got it pretty cheap so I went ahead and pulled the trigger and was really impressed by the quality. If Planet Earth on Blu-Ray is a 10, then this thing is capable of at least a 7. I have shot a Canon 5D MII and think this video is better as far as sharpness. The videos you see loaded up on Youtube never look good, so its hard to tell much about this kind of stuff. I took the raw video, loaded it on a hard drive, hooked it to my WD HD player and ran it through my 42″ Panasonic HD TV and it looked amazing. Even on my dirt bike on really nasty, rocky trails it looked great and because the lens is so wide it looks pretty smooth. I can’t wait until boating season to mount this thing on my jet ski and wake board. Also I hope I can get back to mtn biking after a crappy winter and try some there as well.
I really like the perspective of the 960 for what I will be doing, so I saw no point in spending the extra money for the 1080, and I have heard that the 1080 had issues of freezing up, but that may have been resolved in firmware. Another nice thing is that accessories are reasonable, even batteries are only $20 unlike what my other cameras charge 2x that for something similar. It also comes with a lot of goodies, enough to keep you busy for a while.