LEDs and CFLs together???

i have a grow with 7 plants.. i have a warm 300w and a dual spec 125w CFL

i was thinking the more light the better yes? but could i put some LEDs in there also? and if so what LEDs would you be thinking of..

would this also heat up my grow room as much as another cfl would or what?

let me hear your opinions thanks RR

any advice?