It's pretty easy. MJ likes to grow much bigger than those setups are designed for though so you'll want to do a Sea of Green grow (flowering them when small) or Low Stress Train them or something. There are threads about both methods around the city, do a little searchy
well this is my first hydro grow, will i find that watching the dvd will guide me through it. and i read some of your post could i grow 4 plants so i save some room
nah, i'd grow all 6. i assume you'll kill the males which will thin things out some, and you can do some pruning. you will want to use one of the methods taking advantage of a short grow cycle instead of growing gigantic plants though. that was my main point.