Check out the journal from allen bud. he's got some sick strains and doing great with only around 205watts CFL in 3x4x4.
Definitely do some supercropping, or topping with LST.
You can check out my grow on the bottom, but this was basically my first grow so I didn't learn about cropping until it was too late. Allen bud has a link in my journal too. One of the best cfl grows i've seen. If I were you I'd grab 3 42-55watt 2700k and a 6500k for the flowering, and don't veg for too long since your limited on space. Keep the bulbs 1-2" from the plants too! Something I wasn't able to do with my current grow. Can't wait till them bishes are done so I can make some revisions and have a sexy ass canopy. 23watts are nice since they're cheap, but you'll need twice as many.