First off, I'd like to say your headed in the right direction, your thinking about it.
When I was thinking about getting into hydroponics, the first thing I did was I went down to my local hydro store and asked alot of questions. I had alot of questions and what they recommended was that I'd buy a hydroponics for beginners book. I bought the book, took it home and read it about 3 times.
Afterwards I went back down to the hydro store and started to price everything out that I would need.
Then I went down to a bookstore to see if their were any other books on hydroponics. Their were only 2, and I bought both of them. After I read those, I got on the internet and did more research on how to build a practical system that wouldn't break the bank.
Then I went to the drawing table and started to draw up a plan on what a good hydro set up needs and where I would put it in my house.
I knew if I wanted to have an efficient set up, then I would have to build 2 seperate rooms. 1 for germenation and vegetation and another for flowering. Vegetation needs to be on an 18 hour light cycle and flowering needs to be on a 12 hour light cycle.
Once I knew what I wanted, I built my first room, then I built my second room. Then I set up ventilation, Then I set up lighting. Then I decided to go with an ebb-n-flow method for both my veg and bloom and built those.
I wish I could go into full detail on how I did it, but it would take forever. I've thought about writing a book, but I would want to wait until I have at least 5-10 years experience first. If you go into my gallery you'll see my rooms and maybe that will give you some idea.
Basically the best advice I can give you is:
a.) Be prepared to spend about $2500 or more to get a good system going.
b.) If you go cheap on anything (Meaning, lighting, ventilation, etc.) expect cheap results.
c.) If you don't have patience & tolerance, get some because you need lot's of it to get into hydroponics.
d.) Research, Research, Research, Research, Research, Research, Research, Research, and more Research.