i have a setup with a t5 and 4 cfl 42w that i just added in. my area is about 2 x 3 x 6 so similar. i have a 2' t5 fixture with 4 bulbs that puts out about 9k lumens plus my other 4 cfl's being about 2700lumens a peice up near about 20k i probably spent about 200 on light for my little area but the plants are look b e a utiful. check out some t5 fixures. pricey but showing good results for a good cfl fixture