GURPS has a few things that you can use to get started on a lighter and simplier note.
GURPS Lite. A short and free PDF that has the basic rules for GURPS.
Caravan to Ein Arris (GURPS Fourth Edition) A free and fast to play fantasy adventure.
Locations and Hot Spots
GURPS Fourth Edition Combat Cards Very nifty set of cards that list all the regular maneuvers and help you get used to combat.
GURPS Martial Arts Techniques Cheat Sheet.
GURPS Skill Categories List of skills by category to easily orgnaize things.
GURPS Magic Spell Charts A nice resource for your Magic game that shows all the Magic spells and thier prerequisites.