I hope I'm not too late to join this discussion, but I'd like to add another vote for the GoPro Hero; specifically, the Hero 3 series. I just did a ton of research before Christmas and this little camera is nothing short of amazing. It comes with a water-proof housing and its low-light capabilities are outstanding. One of my favorite features is the wireless remote. The remote has a huge RECORD button which is very easy to operate with a gloved finger. It's not the cheapest on the market, but I think it's features and capabilities make it a great deal for the money.
As always, your mileage may vary.