Andrew made one his nifty spreadsheets to calculate how much we'll need to drive across the US. We picked our cities, motels, added gas, etc and it came out to quite a bit. Three adults and three kids in a mini van for two weeks is equivalent to a nice, long cruise to the Bahamas so we decided it would be best for us to fly to Pittsburgh. So, that's the new plan!
Sorry everyone! You missed out on a mom slowly going crazy in the car with her kids :P