Why I'm impressed with your blind enthusiasm! I brewed for a LONG time before I jumped to kegging, and apparently you are not on a tight budget...that helps make it a lot easier.
You'll hate yourself for opening the keezer to fill a glass...It causes condensation that will need to be mopped up from the floor of the keezer.
Also...FOLLOW THE DIRECTIONS. Just cause you CAN boil 5 gallons of extract kit, doesn't mean you SHOULD boil 5 gallons. It requires some hope changes...just follow the directions for the first one or 2.