ya htg supply is awesome...a lot cheaper than most people and 100% reliableI try to buy from HTG they stand by their stuff and they are cheaper than a lot of places. I didn't get a cord and they sent it to me asap. no questions asked. I also know of someone on here that had a problem with a bulb and they replaced it no problem. Here is there site, sorry I saved what I got which is 600 watt HPS but once you get there look around High Tech Garden Supply
I third the HTG.Don't know if it is the cheapest but HTG Supply.
lol for some weird reason now it comes up as $9,999.How about 150w hps complete for $20? You could use two.
It's just a basic industrial fixture not horticultural but will certainly do the job.
http://www.e-conolight.com/Product/EProductDetail.asp?ProductFamilyID=7&FGNumber=E-MT6H151G
You have to open this link twice to get the right page for whatever reason.