for lighting for your tank I would go with the 20" 1x96W Coralife Aqualight CF hood w/ Quad 50/50 -Square Pin
. It's one of the best for a tank your size. I'm planning on getting it here in a couple of weeks.
You will need a Powerhead right now, the clowns will play in the stream, plus it'll keep the water from becoming stagnent.
As for the LR
, if it's uncured I would move your clowns out of there, cuz you will go through a cycle again. If you can find it cured that would be best, then you wont cycle.
I don't think anyone has this hobby totally figured out. It changes all the time, but that part of the enjoyment. : )
don't do this hobby half assed, cuz it's only going to discourage you. Read, Read, Read, and take what the LFS
says with a grain of salt. They are only trying to sell a product. I've gotten very bad advice from some of them, so I trust my judgement, knowledge, and suggestions from peers. I would seriously join nano-reef.com, it's been invaluable to me since it's all about small reef systems.