I described it a bit more in the
other thread, but to reiterate, much like Josh, i ran duct from the window to the terrarium. I installed a 'muffin fan' in the intake of the duct, and it currently sits between double windows (due to Boston's random weather, i can tell already this is going to be very cold sometimes and sometimes too warm, all in one week). The duct vents into a "lint trap" full of water and draped with a cotton cloth that dangles into the water. This serves to slow down and humidify the air, but unfortunately takes a lot of space in the terrarium.
The ventilation parts cost more or less thusly:
$9 120V metal-body muffin fan (Ebay)
$10 lint trap kit (with duct)
$3 hood pipe
+ old sock and random foam for sealing window as best as possible
duct tape - priceless
== as cheap as possible
Lighting is currently 3x 2' fluorescents (2x 5000K and 1x 4100K (cool white) F17T8s). Cost was:
~$3/bulb
$15 ballast (which will power up to four bulbs).
$2/pair of end sockets
$6 replacement cord
The ultrasonic mister seems to be DOA. I returned from school and the humidity is down to '73%', which only worries me for my hamata, which i have babied with an extra cover until now. I plugged in the mister, but nothing has happened so far.
I have a much fancier and more labor-intensive setup planned, but finally decide to throw this together at postpone the deluxe model until i had the kinks worked out and perhaps more time (Riiiiight....).
That's why the leaf is greenish, Josh. Unfortunately, most of the plants have been languishing away in random plastic bags or small terraria on the floor of the room, and not always getting their cool nights or enough light. That's also why i decided i better go ahead and put together something - fast!