looking for a metal halide setup

Ive been looking to upgrade my T-5 lights over my 75.  While on vacation this summer in Waikiki we went to the aquarium and my wife asked me why my tank doesnt shimer like ther tanks did.  I told her I needed new lights.  She said "you should get some." So needless to say I gues i have permission to by some new lights.  Yeahh!!  I am happy with the T-5s but just dont seem to get the color I want out of my corals.  They grow just fine.  Seems to be lot of choices out there and was just wondering if anyone had any input as to what supplier or brand.  Oh yeah, and I dont want to be cheap but not to expensive either.  Probably looking at a dual 150W with some other florescent combo. 
Iff anyone has a suggestion let me know.  Or maybee their's a used one for sale out there. 
Josh