This is tough but right off the top of my head:
Jay Ryan - EVERYTHING
Firehouse - Beck - The fuckin' thing gots velvet on it!
Mike King - Flatstock Poster - The fuckin' thing gots velvet on it!
Dave Crossland - Incubus - Gorgeous image and printing to boot
Jay Volmar - Oops the tour - love when people have extra additions to the poster like the "kick me" sign Jay taped to the print itself
Print Mafia - Fu Manchu - I fucked up and didn't get one of these. I suck
Paul Imagine (from Sacramento) - Everything - He hand paints his ink on the screen for EVERY sheet. All of his prints are different even within the edition. He went home Sat. and hour and a half from San Fran. Printed a poster for a show then printed an awesome Flatstock poster and drove back for Sun. He's nuts. Sorry I spaced your name.
Jeral Tidwell - Flatstock poster - that boy is a supreme talent
Jeff Kleinsmith - Afghan Whigs - Even though I didn't make him whip it out I know the greatest poster EVER was two tables down from me
Tons more but I can't think straight right now...