Best tubes under $100? for Fisher integrated

Hello,

I have a Fisher 5qb? something design integrated tube amp. I don't have much in the amp, of course, but I was wondering if anyone could recommend some great tubes. I have heard good things about Bugle Boys, but am really new to the whole tube thing. I am mostly into hf detail, female voice, and soundstage. I like airyness and even slightly bright components. Will be driving monitors with ribbon tweeters. My bass is more than adequate with a sub and has virtually unlimited adjustment. Any ideas? thanks!