I've got one of these:
Kodak PlaySport Zx5 Full HD 1080P, Waterproof: Amazon.co.uk: Electronics
and one of these:
http://tinyurl.com/79tx4wd
haven't tried the stand in an r22 but its very sturdy if you can find somewhere to mount it. Have some HD footage taken with the kodak by a passenger in the r22 if you want to check out the video/sound quality?