I agree with you on one hand FishFreek
Any florecent is going to be less intense than MH lighting
That is true from a lamp to lamp standpoint, but I am not sure I agree with it from a lumanaire to lumunaire standpoint. Are you saying all MH
fixtures will produce more light than any fluorescent? I am not sure I would agree with that either. Either way, this makes for a good discussion. I would like to try to provide as much objective data as I can on this topic, but ultimately what really matters is how the fixture performs with the tank and it's inhabitants. All the data in the world could say one thing on "white paper" but what really counts is the real world application.
T5HO is a new technology in the US. I do not think it will be the "end all" to aquarium lighting. There will always be specific situations where a MH
is neccessary, however, it is worth educating yourself as much as possible before spending a large sum of money. When you purchase lighting there is more than just the costs of the fixture. You should also consider the lifetime costs of owning the fixture - (energy, lamp life, lamp costs, lumen depreciation, )
Again, any help I can provide regarding this subject I will do my best.