Hero2: $242.95
http://www.amazon.com/GoPro-HD-HERO2...keywords=hero2
WiFi BacPac: $29.99
http://www.amazon.com/GoPro-3661-037...ds=wifi+bacpac
Edit..
rats.. you're right Kevin .. no remote.

I guess I could use my iphone, but that'd be a pain in the a$s on the kayak.
Wifi BacPac + Remote: $135.99
http://www.amazon.com/GoPro-Wi-Fi-Ba...ds=wifi+bacpac
hmm... but it should still last longer than the Hero3 Black right? since it has it's own battery in the BacPac?
I don't know...