I had a gift credit card I got fr Christmas, and I blew the whole thing on hops at Austin Homebrew Supply. I grabbed up like 24 different bags to experiment with - so the 1 oz size was perfect for what I was after.
Probably cheaper from Hops Direct if looking bulk, but I ALWAYS tout AHS - thier service is fast, people are nice, and I have yet to have not one single itty bitty problem with them.