I'm not sure if you have heard about this, but Georgia Tech's Brandon Lasater had an 800 pr of 1:53 before last week. In the past week he's managed to shave over 5 seconds off that time.
On top of that, this guy just outkicked Florida's Sean Obinwa to win the 4x800 for his team. If you see the video, you won't believe how much ground Lasater puts on Obinwa in the last 100 meters. (It may not look like much, but two make a comeback like that in a speedy 800 race is phenomenal).
If you'd like to see the video, here's a link:
Skip to 5:45 to get to the last leg, where Lasater and Obinwa battle it out.