ACAN lighting can light your tank for under that amount.
They are very nice units made on Long Island and sold in a few LFS.
I think you could light that tank with 2 104AC-12B.
http://www.acanlighting.com/index.php?option=com_content&view=article&id=79&Itemid=27
Which units?
I see one for $495 that you could use two of for your tank.
You should call a dealer to find the right unit for you.
Aquarium Village and Tropical Island are two LFS on Long Island that sell these.
See what they recommend.
acan led's will save you electric, but you will loose all your color
I thought ACANlighting LED would makes sps/lps colors better? My Ts 5 are better?