What to do for lighting...

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Hey all....looking for some opinions here. I am starting a new tank and want some help picking lighting. Tank is about 36 gallons. 24"Lx18"Dx20"H. will have about a 4-5 DSB for my yellowhead jawfish and want to keep ALL corals. LPS, SPS, Softies, Clams....whatever. I have been looking at lighting with 1 250W DE HQI MH and 4 T5 actinics. Now.... I was told that MH lighting with internal ballasts is a no-no, but was told by the same person to go for a Giessman. Ok, no problem, but it almost seems to me that the Giessman infinity that I was thinking about buying might have an INTERNAL ballast. Can't find anywhere that tells me where it is, but JL says nothing about a ballast being included. Help me out here. If this was YOUR tank, how would YOU light it?