Hey I'm not an expert, so my advice would be to check out the growFAQ at www.overgrow.com they have loads of quality information! You will be able to find specific information on clonning and explanations on almost any grow questions you have. As for a closet setup Ed Rosenthal has a great book called The Closet Cultivator that covers everything you need to know including security. I actually need to pick up that book as well.