quick advice

im going to be starting up a small room i was wondering what would be more effective for the are i have i was thinking making sort of bleachers for them to sit on stadium effect to maximis the room or just having them all on the same level would it make a diffrence 2 600 watt hps i will be running

I run stadiums and can tell you that without a doubt they yield better than the flat gardens I had a few years ago. I built 3 level racks on wheels, 12' long and hang 6x600W down the middle in cool tubes. 36 plants per side in 2gal. bags. I put a few on the ends on a cheap shelving unit from walmart.
About a year ago I switched to 2 levels and larger plants. Less headache.
It took a while but I learned to do a perpetual harvest and even built a veg stadium with 4x400W.
Search Northern Farmer or NFR, same guy. In the beginning I copied everything he did, except the 220 plants anyway. Worked like magic.
Give it a try. You'll be amazed at the yields from a small space.
Fred