On Ebay they have 'Mercury Vapor Bulbs' that arent specifically for reptiles, but they're DOG-GONE CHEAP!
Do they put out the needed UV light because they are 'mercury vapor'?
see:
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=2352976949&category=1285
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=2564156177&category=26219

