Well it's all really up to you. What I mean is there are many different options to choose from for everything, what you want your walls to be, Mylar, Poly, Flat White, etc, how many lights you want, I go with 2-3 1k lights, then you need to decide how big a fan you need to be able to cool that many lights, and pull through an appropriate sized carbon filter, a/c no a/c, hydro/soil, there are all sorts of things you need to give us alittle more info on what you are trying to accomplish your goals and most important your budget. Hit us back with more info and we'll help you out. Happy Holidays!!!!
edit: Spot on KushMaster85 good info!! We think alike