Most people can't afford the $500 price tag of the GoPro HD. So they released the GoPro 960 which will probably retail for around $350 here ($250 NZD ish if you buy online). It is missing a few features like 60fps recording (good for slomos) and 1080p but it still records in HD (960p) and will be perfect for recording anything you do on the bike.
http://www.goprocamera.com/products/...960-camera.php
Extremely tempting!
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