It's not the easiest thing that you can do. If you're not mechanically inclined, take it to a shop that you know and like.
Here are a few things you'll need to know how to adjust if your attempting it yourself:
-exact positioning of front derailleur, both z-direction and x-direction
-position of the b-screw
-positions of the limit screws (front and rear)
-chain length
-cable tensions, etc.

The process well described in a number of books, but these are the subtle adjustments that make the final difference of a "finely-tuned" drivetrain. And if you can get someone to show you how to do it the first time out, then it becomes a lot easier to keep it tuned from there on.
Hope that helps.