hey man, growing simple is the way to grow, but I do not recommend you going on the internet and buying a growing chamber. POLICE check shit like this. Anyways, go yard saling. Find you a stand up shelf. One that people use to hold movies on or something similar. I already has 3 sides and a top/bottom, so all you need to fabricate is a door. Also, as a newbie wanting to grow your skills, I would suggest starting with CFLs, soil grow, and always put an outake fan/carbon filter in. For intake, just go find you a few flaps that you could install on the bottom area of the shelf where fresh air will come in through these flaps, and leave your area through outake/carbon filter.
Another thing, take your time. Patients. I have only had one grow ( I read on here every day so I kinda know what I am talkig about) but this is what I have gathered as far as "easiest" for ME. Whether it helps you is up to you.