Woohoo, congrats! I would check out the book called "Square Foot Gardening", by Mel Bartholomew. Its a great gardening book on how to maximize what you grow in small amounts of space, and how to keep it all manageable.
Now that I live in the country on a nice property, I've been wanting to get a garden going. This year I'm determined to make it go! My seed catalog has been on my kitchen table for weeks, I keep looking through it trying to make decisions. I tell ya, when I hear of what people in big cities have to go through to get a little bit of green space to grow things, it makes me appreciate what I have.