Lake Tahoe for a week

I'm spending 4 months exploring the US and what I want to do with my life for the next 5 years - a combination of road trips through the most scenic areas, camping, and staying in 2 of my favorite cities (Chicago and San Francisco). I'm packing my trusty Mazda Tribute with a box of books, a tent, a GPS system, and lots of music and heading out in June.