1994 (?) Univega Boralyn S8.9 Metal Matrix that I picked up brand new, never built up, from a shop closing in Milwaukee a few years ago for $75 cash. Not bad for a $1,200 frame that was one of the reasons the original Univega company shut down in the mid-90's.
It's built up with modern compnonents to 21.1 lbs. I have ridden it only 3 times and it is simply a rocket with very smooth trail feel. I'd love to ride it more, but it is too pretty to risk.