i personally like agrosun full spectrum flouros rather than cfls, less heat in a small space. if your space is 2ft long you could get 4-8 flouros(80-160watts total) in there and have much better results and more even canopy coverage than a 50mh or even the cfls. my veg/cone/mother chamber was 2ft wide by 4ft long and used 8 4ft agrosuns for a total of 320watts. with that i could have 4 bonzia mothers and root about 18clones and veg them for 2-3 weeks until they were ready for the flower room! so if you had a space that was 2ft x 2ft you could have up to 8 2ft agros and that would be more than enough for your needs. with the flouros you would only need a $20 bath exhaust fan from home depot and a few intake vents and mabye a small fan for circulation and to keep the stems strong.. i would guess with the cfls or the mh you would need a bit more powerful exhaust fan.

these are the agros i use:
https://ssl.cgicafe.com/clients/hmoo...g_agrosun.html
but i think i am going to try these to see how they work because they are alot cheaper and run on the same ballast:
http://www.plantlightinghydroponics....mp-p-1004.html