ok Help me make up my mind :)

[StirCrazy]

ok back to the lighting delema.. I saw a 20K 400watt MH lighting up a tank and man it was nice, but I also like the looks of the PC set ups the question is I am worried about how I would mount a 400Watt bulb for a 33 gal tank.. would I just slap it in the middle so I have low light areas on the sides or center it more to one side? also how high above the water would I have to have it.
another question I have (maby stupid) but would a high light intensity like that inhibit Coralline algae growth? I ask this becaus it seams to grow in lower light intensities nice. and what about muchrooms, soft coarls, and Anemones? (one of the fish I do want is a clown and a anemone for it.)

Steve