T-5's should be more than enough.
I've had my 75g up for over five years, and until just recently it only had 6 regular T-12 fluorescent bulbs. I've got lots of softies, several LPS and even a couple of SPS (montipora sp.).
Right now my fish stock list is as follows:
Yellow Tang
Brazilian Gramma
Flame Angel
Flame Cardinal
2 Ocellaris clowns
Personally, I like fish with lots of color. Also, I've found that the more different your fish are from one another, the fewer problems there will be with aggression between them.
FWIW,
Mariner