I just bought an 8 lamp, T5HO Sunblaze Fixture off Ebay for $250 w/ 3500k 5000 lumen bulbs....not a bad deal if a four lamp fixture is gonna cost $215 without bulbs...gotta love ebay...except for those second-hand/homemade junk sellers.

Also, while not near as hot as an HPS, T5's aren't as cool as say...T12 (not the VHO). and with 8 of those bad boys lined up next to each other, it radiates some heat, but my plants LOVE it, just gotta keep to closet door cracked a bit to let some heat out.

I was very pleased with the quality of the Sunblaze Fixture, and it came with bulbs! 40,000 Lumens means I lose 10,000 to a 400w HPS, but I can easily make that up with a little side lighting...when heat is an issue, T5's are a GREAT choice, but fixtures are not always affordable.