We have nixed the idea of the autotrain and are opting to drive like we did the last 2 trips. We are, however, considering renting a minivan to make the trip more comfortable, but I think it may be a little too far out to get a good rate...we are planning on going next January 2013. When is the ideal time to start searching for rental prices? And where should I look for the best deals? Costco? Just online searches? Thank you for any advice you have!