David Goldberg Sensei, living in the Philadelphia suburbs, has made many fantastic blades for me. I believe he has a pretty nice iaito for a little over 700, and a really tight one that sells at Bujin Designs for, I believe, a few hundred more. Be sure to give those a skim before making your final decision. He is one of, if not the most famous swordsmith in America.
www.goldmountainforge.com
Drew