If you've thought about buying an HID light, Xenonics has a NH and NH2 up for auction on Ebay:
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=14959&item=3005678709
These lights are very bright and well made.
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=14959&item=3005678709
These lights are very bright and well made.