Well thank you Jangel, I'm running about 80 degrees, with 85 as the max. I don't really have a dedicated intake because the cabinet is usually open like this, leaving alot of room for fresh air to come in.
My only active intake just blows fresh air on the lights to keep them cool. My active exhaust is two PC fans at the top of the cab, drawing air in through the front and pushing it out the back. The cab is in my spare room, which I had planned on keeping the windows open to keep it cool. The temps here during winter are usually at about 40 degrees max during afternoon, usually much lower. But this year the temps outside have been 40-60 all winter, barely dipping below 40 even at night, which kind of threw a wrench in my works. I'm going to go out today and buy a window fan which should hopefully provide enough cool air to the room to keep the whole thing 75-80 degrees inside. The plants are doing fantastically even at these temps, but I plan on tweaking things until I've eventually got them just right. Hopefully when the males come out that will increase air flow as well.
edit: Hmm maybe a window fan is a bit obvious. More insight needed.
edit #2: I think the light shelf is screwing up my airflow, dividing the plants and lights from the exhaust which is above the shelf at its current height. I'm going to make an exhaust below that level, which should help..