There is a line of books called Zinn and the art of Road bike maintenance, Zin and the art of Mountain bike...... I have flipped through them at the bookstore and they seem pretty thorough. If you don't need a manual in front of you while working, Parks tools and Sheldon Brown's website can guid you through just about anything. The bike can be assebled and tuned with allen wrenches, screwdrivers, and a 15mm open end wrench for the pedals. You only need the special tools to remove the cassette, cranks, bottom bracket, headset and adjust the cones.
If you can swing it, and plan on doing your own maintenance down the line, it is cheaper to get the specialized tools as a kit. You can get some that have cone wrenches, crank puller, bottom bracket tool, cassette lock ring tool, and a spoke wrench. That would cover just about anything you would realistically ever need to replace. The book a mentioned earlier gives instructions with pictures of how to do most jobs. Even if you just look at the book and decide that the job is over your level of confidence it is worth it I think.