Looking good bro,
I think personally your could lose the 2 aquarium lights to reduce your heat production, these usually have built in transformers that would warm up that box pretty quick. I'm guessing your running the cpu fan at full speed which is gonna take a lot of moisture out so maybe you could find a lower voltage transformer round the house, most 5v phone chargers would be enough to dim it down to a comfortable speed. You can pick up a cheap digital food thermometer and monitor your temperatures to around 24'c (+3 allowance for the small space)
I think the 12/12 lighting schedule may have stunted there growth a bit, but unless your planning on up sizing your 'tent' and there genetics they will still have a bit of stretching to do over the next few weeks so now would be a good time to consider making them space, as a rule of thumb, I always double whatever I think I'm going to need. Lets say at least half of them are male. That's 3 Little Christmas Trees standing at least a foot tall.... then you got to fit the pot below and a light above...
Potting/Flower Mix is fine to use as long as it came from an unopened sack, if used from garden leftovers then keep an eye on the soil for tiny lava and bugs. don't want them eating your roots before your little babies had a chance to blossom.
Can I ask where you got the pots from and where they adequately cleaned from there last use.... don't want your bud absorbing any chemical nastiness which could also kill your plants. i.e play doh pots... safe for children to eat, bad for your roots...
1 more thing I would recommend. PLACE ALL ELECTRICS ABOVE YOUR GROW AREA!!!!!.... 1 slip with the watering can and that could be a nasty electric shock for you and possible a whole power outage in the house depending on your breaker unit.
As a precaution I would suggest you get a separate inline rcd/mcbo or an extension socket with 1 built in. Spend a little now, save your home, your family and most of all yourself in the long run.
other than that, thumbs up to the cfl.
happy growing dude.
keep updating with some pics