You might want to consider Southern Specialties
http://www.lockpicktools.com/. I've bought hundreds of picks from him for my lockpicking classes, along with just about everything else Richard offers. The quality is always excellent, they pack and ship right away and try to do everything they can to help. Like setting up special pick sets the way you want.
It's a family business and they will spend all kinds of time on the phone with you. Richard is the machinist that actually made most of Southords' dies, btw. He uses steel with a touch of chromium in it, so it's stainless, FWIW. There's a good writeup in "Non-Destructive Entry Magazine".
Or how about the LP101 Sponsor, Lockpickshop.com?