Lighting Question

[belzebuth]

I am planning to update the current lighting(VHO's ...just lots of it) above the tank anyone has a suggestion? Here are the tank spec:

-5 feet x 2 feet x 24 "
-Currently filled with softies but the goal is more of a mixed reef.
-Heat would be an issue

I am not really familiar with the fixtures on the market. Any help would be appreciated.

Thanx