another vote for Andy at vts. Brent does a great job too. I find his prices to be more expensive than Andy's. Having said all of that, I've had good luck with eBay and usaudiomart sellers as long as they have 99% or better ratings. The prices are cheaper and when a tube rarely is bad the vendor reimburses the cost. I have a local shop who tests tubes for a minimal fee, which ensures I have the tubes I think I do. Plus, it gives me an opportunity to swap stereo stories.
Great thread, thank you