If you want a cheap throwaway video camera - this Fip Mino HD 4GB for $39 isn't bad. They've discontinued these but you can pick one up today - 10/7 - at Woot! for $39 plus $5 shipping.
http://www.woot.com/sale/flip-minohd-4gb-camcorder-with-image-stabilization-3rd-gen-newest?utm_source=Daily+Digest&utm_campaign=99c35759b5-Daily+Digest+-+20111007+-+Woot&utm_medium=email