Hi Earp,
I would suggest that you look at a fairly new camera on the market that pretty well blows everyones' mind. It is called the MOBIUS ACTION cam. Weights in at 40 grams vs 100 + grams for a Gopro and costs only $75.00. I use both Gopro Hero 3 Black and Gopro Hero 2 as well as Sony AS-15 and flip cameras for aerial video. I recently purchased a Mobius Action cam for a customer requiring FPV with a F-550 and I certainly was extremely impressed with the results. I would compare this camera to a Gopro 2 but much lighter and with an internal rechargeable battery than lasts 80 minutes. Feel free to check out the multiples video comparison on youtube with this camera. Definitely a gem for the price!