6 Plant Lighting Question

Hey guys, I'm currently running a 6 plant stealth hydro bubble system with the dual spectrum II CFL Lights. The plants are vegging good right now but im afraid the current lights im using right now (SH Hydroponics, Inc. > Dual Spectrum II High Output Fluorescent Light Kit) Will not produce the yield I am hoping for. My system is in a decent sized closet but there is no where for me to ventilate the heat from a hps or hid light. So here is my question, if I bought SH Hydroponics, Inc. > Multi Spectrum 315 Watt CFL Light Bank and bought two bulbs for flowering would that be enough to produce me some dank buds? if not does anyone have any ideas on what I could do with my hps/hid heat problem?

There is no reason why you cant run a HPS light....just get some cheap fans ...the new systems and reflectors run really cool and you CAN get the heat out of a closet alot of time just by leaving the door open and using 2 fans in an area as small 5x2 (10SQ ft). About 400w is as high as you can go without setting up exhust system which is still very easy to do and parts needed are very cheap at hardware store....thats if ya wanted to go for 600w or 1000w which IMHO would be WAY to much for 6 planter...400w HSP or MH should be good and do well......

or even a 250w.