Firstly, I'm from Australia.
For my road trip across the southern US, I'm starting just before Xmas 2010 in Phoenix AZ, and finishing in the middle of February 2011 in Miami FL. I'll be on the road for 57 days.
I'm planning to travel through Arizona, New Mexico, Texas, Oklahoma, Arkansas, Louisiana, Mississippi, Alabama, Georgia and then down to Florida. It's looking like about 4000 miles in total, so far.
I'm interested in historical sites and natural scenery, but I'm aiming to stay off the main tourist routes as much as I can. I want to hang out with the locals and get a idea of what it's like to live in the places I'm going through so I can compare as I travel East.
I'm collecting points of interest using Google Maps here: http://bit.ly/cBThyw. Feel free to add suggested points for me on it, or suggest them here.