United States v. Thomas, ___ F.3d ___ (9th Cir. January 26, 2004) (federal sentence in controlled substances case vacated and remanded, since guilty plea did not encompass quantity allegation in indictment, and defendant neither admitted possessing more than 50 grams of cocaine base during his plea colloquy, nor knowingly waived right to have jury determine question of quantity beyond reasonable doubt).
http://caselaw.lp.findlaw.com/data2/circs/9th/0210409p.pdf