good luck man. there's loads of info available already if you look around for it. Your question is very open ended.

I feel silly telling you to look round the forums cos you've been here longer than me but I found just reading through everyone elses stuff to help a lot. Especially to get ideas for setting up a little grow closet.

i found this really useful
http://boards.cannabis.com/showthread.php?t=45063

hope this helps, good luck!