What does everyone think of T5's for reefs

[marcingo]

Hey everyone.

I had 2 150 watt DE MH on my 21 inch tall tank. One of the ballasts broke. Anyway I have recently started reading about HO T5 systems. Basically what I am looking at is a 8x 39 watt setup for my 4 foot tank. Anyone have any experience with HO T5. Also just a note the T5 I am planning on getting has individual reflectors for each bulb. Would I be better off get getting a new ballast for my existing MH or would the T5 do a similar or even better job? Its tough to get a concrete answer from the internet since most information is just biased on personal preference. Also with the T5 what would be the best bulb setup?- I would definitely like 1 or 2 actinics for color.

As a sidenote I am keeping things like torch, zoos, palys, mush, and would like to keep some lps as well.

Thanks.