Just saw this on Slashdot: http://space-simulator.lanl.gov/ It's a 297 node Beowolf cluster of Shuttle Pentium 4's with 1 GB of ram. What I found particularly amazing was that they descided to place them on the K-Mart Martha Steward utility racks that Hal brought to ITEC to shelve our PC's. :) It's the 85th fastest computer in the world. Go Linux!