400w hps and mh

I was looking for new better lighting for my grow room and came across this deal.
http://www.amazon.com/Digital-Switchable-Ballast-Reflector-GYO-2002/dp/B003810CVA/ref=sr_1_7?ie=UTF8&qid=1295317422&sr=8-7

amazon hook up. 400w digital switchable ballest with hps, mh bulbs, reflector, powercord and hanger $165.00.
thought I would share with others on a budget.
-Neil

I was about to ask the same question. There's one on E-bay as well (same price range). The one on ebay looks like it would dissipate heat easier, though it requires the special MH bulbs.