Turn off the incandescent bulb. Use it for a heater if your cabinet gets too cold. The hanging fluoro fixture is good as long as you can move it up once the plant's height requires it. Get a couple of swag lamps (the ones that hang from the ceiling by the cord or a piece of chain) and discard any lampshade or globe so you just have the socket to hang free. Get those "Y" shaped adapters that screw in where the bulb goes and allow you to use 2 bulbs. Thats why you don't want the lampshades, they'll get in the way. Hang them from the top of the cupboard so they cover the area that's not under the hanging fluoro. If you could see down through the top, it should look like this [%]. The slash would be the hanging tube and the circles would be ths swags. Put a CFL in each socket and you'll have an array that can be adjusted as needed. Check out threads by jdog and bobbong and you'll see the results that can be obtained with CFLs. The key is, as Stellar said, to keep the lights as close as you can. Keep the tube that's mounted on the back wall, it'll provide light to the lower branches. After they get big enough, just turn the pots a quarter or half a turn every day. For ventilation start simplest first. A 3 or 4 inch hole in the top and a couple in the bottom and see if convection will do the trick. Simple and quiet. If not, add a computer fan or some other type of quiet fan mounted on the inside blowing out. Have a good grow.:thumbsup: