Lighting for my new Grow

Ok boys here's what ive got going on... 7 foot wide X 5 Foot Deep X 8 feet high, I have removed all the shelves and am preparing to do the black&White poly on the walls. Ive decided to Run Two 600 Watt HPS's with air cooling reflectors http://www.htgsupply.com/Product-SunWing-Six-Reflector . I am also going to try out something ive been thinking about for a long time and that is 3 4' 8 Lamp T5 fixtures that are going to be mounted sideways at about 3.5 feet. Im hoping the side lighting will develop the lower parts of the plant to get much more out of them... So im looking at 180,000+ Lumens from the HPS lamps and then 120,000 lumens for side lighting... This is a Soil grow at the moment. I am setting up another tent in the room for clones, moms, and some AutoFlowering strains too... am i crazy? I know the lumen counts are high but the height that i choose to mount the HPS lamps will lower the actual light that the plants are getting vertically while the side lights will be very close to the plants so i will probably be getting close to that 120,000 lumens output with the T5's. Is this too much light?
-MP-