Thanks for the all the input everyone!!! Here is a little more info... I plan to have 6 4x4 tables (I will be growing in 1 gallon pots apx 36-42 pots per table) and do a perpetual grow. Each table will be 1 week ahead of the next in flowering stage so that I can harvest a table a week. I will have room in the clone room to move clones to pots and give them a week or so in the pot vegging before they go to the flowering room.
Sixstring, I have about 6 feet of vertical space.
PJ, thanks for that info, I did not know that!!! To clear up my original post a little... I plan to have either a total of 6 600s ( three on each side of the room) or 4 1000s (2 on each side of the room on rails) in the room. If I use the trays like mentioned above (4ft x 12ft x 2rows =96 sqft growing area) I would need apx 4800 watts of light. Is my thinking on that correct? If so, that would mean I could go with 4 600s on each side of the room. I think that 600s would be best since I only have a 6 foot ceiling.
Here are some pictures of the work I did over the weekend