1st grow, Bubbleponics, Ak47,Knowledge? Priceless! Any tips

Hey I've been doing research for a while now(6 months-12months) and have finally decided I want to grow using Bubbleponics and have almost completed my set up. I have AK47 clones available which are coming in a few days but am still to settle on a light . I'm planning to have 7-8 plants and have a 4x5 cabinet(will need to get pics), also have three 5 Gallon buckets(one which I'll use to fill with nutrient mix for exchanging), air pump and stone, rubber tubing, netting, nutrients, rockwool etc. I know how to set it up but what kind of light should i get? And is this a good Idea?!
I have the belief in myself and am sure I have the know how just need a helping hand! Hopefuly get pics up real soon!

So again,
1-What light set up should I use?
2-Any advice you could give for a first-timer that perhaps isn't on the FAQ's or your thoughts?
Anything appreciated!
Peace

Just an update!

I've got a converted cabinet about 1m2, with two 20litre buckets all rigged up with my baby AKs on top vegging under a 125w CFL and will flower under a 600w HPS(maybe more!) Good times!

They're about 6 inches and stinky! Will get pics up soon...

Peace