I was reading the most recent issue of Popular Photography today and there was a short article on Freestyle Photographic Supplies in Hollywood. Apparently they stock films, paper and darkroom chemicals (not to mention Holga cameras) from around the world. I have no experience them but apparently they have 100% satisfaction policy, which would be hard to beat. You can find them at: http://www.freestylephoto.biz
So if you're looking for your favourite B&W paper and can't find it anywhere in your home town, maybe give them a try...
I've been using Freestyle for a few years now and find their combination of service, selection, and pricing to be unbeatable. Standard shipping to the East Coast is a little slower than I'd prefer (generally 6-7 working days), but it's inexpensive.
Of course I'd prefer to buy locally, but selection is very limited, and generally double the price for film, chemicals, and paper.