RTC, definitely check out that Eggers book...I'm not a huge Eggers fan in general (and yet I continue to read every single thing he publishes...I guess my inner hipster can't help herself) but I was really impressed with What is the What.
Jorge, I concur about starting with The Hobbit, I loved it as an 8 year old.
Also, I'm at the airport right now en route to Denver...anyone have suggestions for things to do/places to eat?