What Do You Think?

I've decided to just go ahead and buy an HPS/MH grow light.I neew opinions from successful growers on this set up.I'm growing in soil in a closet space that is about 6ft tall X 3ft wide X 3ft long.
It comes with a 400W HPS bulb and I'm going to buy a 400W MH bulb for flowering.

http://www.htgsupply.com/viewproduct.asp?productID=47981

look into air cooled hoods. Its going to get hot in there.
But yea, that guys all over ebay.

Heres a good one.

http://cgi.ebay.com/400-WATT-HPS-DIGITAL-GROW-LIGHT-6-AIR-COOLED-HOOD-400w_W0QQitemZ370263562797QQcmdZViewItemQQptZLH_DefaultDomain_0?hash=item56356d9a2d&_trksid=p4999.c0.m14