If you didn't want to wait to have one built by a custom rod maker, LL Bean and Orvis make bamboo rods. There are a few shops in the country that stock bamboo rods. Angler's Lie in Arlington, VA and Leland Flyfishing Outfitters come to mind. Perhaps one of the Forum's sponsors stock them as well.
There are many artisan builders, but their production is limmited, and it can take months (often more than a year) to have them make one.
One cast can change your day...maybe your life.