If worst comes to worst, you can always make an adventure out of it with your DD and take Amtrak. It will take about 24 hours to get there but it will cost only $339.00 total roundtrip. That is not per person. That is the total for both of you. If you have AAA you can get it even cheaper.
I have taken Amtrak many times and it is actually a lot of fun. For the long trips, the passenger seats are very roomy and recline, so you don't need to pony up the extra dough for a sleeping car. It is actually quite comfortable in the passenger car as long as you bring a pillow from home.
We brought books, games, cds, dvds (we have a portable DVD) and other items to keep ourselves busy. There is usually a snack car and a dining car, although the dining car can be pricey.
It is a very retro way to travel. I always feel like I am on the Orient Express for some reason.
