What method should I grow these plants with? I can't just let them grow because of my limited height, I'm really confused as to how I'm going to do this.

considering i only have :
5 plants from seeds,
8 square ft of space,
about 36 inches from bottom of stem to safe light level (18 inches)
400w hps =50,000+ lumens of light
I threw a couple cfl's in there too, the daytime kind(blue box)
relatively small pots

What should I do to get the best QUALITY (#1) and yeild(#2)????


THANK YOU TO EVERYONE for their help so far, the plants are looking better already!!!