Hagen Glo or Nova Extreme T5's, which is better

[skabooya]

from what i have read and understand, the fixtures are a plug and play except the bulbs. They also dont have an on off switch, they need to be plugged into a timer which is fine for me but turns some people off.
the 2 bulb fixtures are pretty narrow, ive seen them in my lfs. Many people have 2 fixtures over their tanks just fine. But i dont know actual dimensions. Maybe look at the hagen website??
I found a site that sells ATI bulbs *YES!* So im going with the 39watt bulbs that should fit YAY. SWEET!!!