Boy, so much of the answers lie in the kind of cabinets you're installing.
I'd suggest Googling some "how to install cabinets" sites. Seriously. You might hit the mother lode.
Also, are you talking JUST cabinets, or cabinets, counter-top AND cupboards?
Remember that your level (you should have at least one 4' level), shims, and patience will be some of your biggest assets.