im going to be using a 1.5 x 1.5ft box that is about 3 feet high. im using 6 23 watt cfls. the box will be located in the attic which goes below freezing so i have a halogen lamp. (around 70 watts, i dont remember exactly) also the walls inside will have a small christmass light set wraped around them. (this and the halogen are for heat). over the x-mas lights will be tin foil, im going to have the lights sticking out through holes in the foil, so basicly the bulbs are in the box but the cords are behind the tin foil. the outside of the box is wrapped in insulating plastic. i have a fan hole on the side and a fan blowing at all times. i havnt finished it yet to tests temps but i had one similer to this but not well built and it stayed at 70-75 degrees.. im getting seeds for free from a friend, and this entire set up cost me 0.00$ i used all stuff i found around the house. are there any flaws you see in this? anything that im missing?