On a related note - anyone getting serious with Hadoop can run it on Amazon's EC2 service.
<a href="http://developer.amazonwebservices.com/connect/entry.jspa?externalID=873" rel="nofollow">http://developer.amazonwebservices.com/connect/entry.jspa?ex...</a><p>Hadoop is packaged up as an image for EC2, so it's pretty quick to get going.