Well, PCBCart doesn't take ExpressPCB anymore.
Makes me mad! I downloaded KiCAD, and I'm finding it VERY awkward to work with. It was written for another language I think. It's free though. I'm really starting to become a strong believer in the old adage "you get what you pay for". The Advanced Circuits software is pretty clean and easy to learn and free, but then you have to pay 50 gagillion dollars to get the boards. Maybe I'll hawk my car and get Eagle.