Ok, start by reading the stickies at the top of the Basic Growing forum. Then go to the Growing FAQ and read everything there. Then read all the stickies at the top of all the other growing forums here. Once you've done that, you'll hopefully have enough information to know how to ask an intelligent question.

From there, I recommend creating a hypothetical garden. List out all the supplies you think you might need; create a plan for making a grow area; plan out how you think the grow should go and how you think you would run it. Once you've got your plan drawn up, post it here and get some feedback from the experienced growers.

Once you've got a good plan in place, buy some seeds and go to town.