Lighting on a 7 gallon AGA bowfront

[E36 328i]

I picked up an AGA 7 Gallon Bowfront the other night for a really decent price (been looking for one of these things for awhile). Now I am considering lighting options for this tank, since I already have the plumbing panned out (oncoming newbie sump questions to equipment forum!)

 

Since the tank is ~16.5" long I am considering the following lighting options:

 

• 18" Nova Extreme SLR T-5 (40w)
  
• 70w JBJ Viper Clamp-on
  
• 16.5" 70w Sunpod (if I can find one)
  

Anyone else have any other comparable options for the tank? Would the nova compare at all to the HQIs? Would a 150w Viper be too much light for the tank?

 

THANKS!