I want to take a 6-week cross country trip in summer 2008 with my family (2 adults, 3 teens). Instead of driving from NJ, we're leaning towards flying into New Mex or AZ, renting a vehicle, then driving up the west coast from San Diego to Vancouver, heading back east to Yellowstone/Tetons and flying back after visiting the Badlands. I'm interested in the pros and cons of the fly-drive vs. just driving. And I'd really appreciate any info/advice (and costs) of renting a van or similar vehicle, as well as places to stay & eat that would be affordable for a family of 5. Thanks!