Get a shockproof/waterproof/freezeproof camera like the Olympus Stylus Tough series. I've taken the bars to my chest with my cam in my front pocket multiple times this season, left the cam out in 5 degree temps whilst I enjoy a , and still always get the shot.
http://www.olympusamerica.com/cpg_section/cpg_digital_sw.asp
http://www.olympusamerica.com/cpg_section/cpg_digital_sw.asp