Cool, good luck, can't wait to see pics.
Isn't foam board fun to work with? It feels like being back in preschool playing with those big carboard blocks that have a brick pattern printed on them!

For a whole mess of seedlings, you need more light. A T12 shop light with 2 'cool white' or 'daylight' bulbs will run you no more than $15 at home depot and is good for a BUNCH of seedlings. It also does not get very hot.
stinkyattic Reviewed by stinkyattic on . First grow, good advice always needed Today i have started my first grow and i cannot wait to see some leaves! My setup is in my attic, i have a 4" AC duct tube come directly out of the AC unit so i will be able to cool the room with downstair controls. I've made a room out of empty space and roof supports with wood and 1" thick foam insulation walls. As of now, i only have 2 100 watt daylight compact cfls and both in large reflective ballasts. I plan to get another ballast and a stronger high output daylight bulb for Rating: 5