What is the time frame for your planned trip? This would definately influence our suggestions. I live mid country from the N to S measurement, and have travelled the east completely N-S, and the time of year of your trip would influence suggestions. Lets put it like this. In summer, the South is HOT! They call it HOTLANTA for a reason! Fall and winter, the North can be COLD! They have snow tires on vehicles in NY and there is a reason for this! If you land any where near Richmond Virginia, I will ride out to meet both you and AK, so let us know where you are riding and what your destinations are. As far as terrain, I think you will find that Florida is FLAT and the roads Square, but if you are attening BIKEWEEK 2006 - who cares. The more North you head for, the better the country roads get. I am most familiar with SC, NC, VA, PA, and there are more good roads than you will have time to drive on. North of here, need other members input on. Are you trying to butt up the mid year Colorado trip with your eastern trip, or is this separate? Our responses will change depending on your trip time frame.