I'm thinking about going online to buy tubes, especially since the local guys don't seem to carry much of anything. So who have you had good dealings with?
Doug is a great guy. The man ships ridiculously fast, always keeps great communication, offers great prices on quality tubes, goes above and beyond for the customer and he's a blast to talk to. After dealing with him twice (purchased a 2x12'' Bogner cab and later on a full Shiva retube), I wouldn't go to anyone else.
Todd at www.revolutionguitar.com is a friend of mine. He'll hook you up, and he carries all the good brands. He's one of the more popular Ebay tube stores.
He also sells a lot of other accessories, so you can get tubes, speakers, jewel lights, cables, covers, pedals, amps etc.