I use a Canon Ixus 220hs compact camera, which can record 1080p high quality HD video, mounted to a gorilla pod flexible tripod which grips well to the coming of a PA28. The camera has SDHC (high capacity SD) storage so you can take approximately 45 mins worth of full quality video on just an 8GB card (I've yet to try a 16GB) The camera is compact and light for carriage rather than taking a bulky laptop into such a confined space - a solution for under £150
