I've just made the plunge and ordered a refurbished mac pro (8-core 3.0 GHz, will have 16 GB RAM). As I'm sitting here drooling and waiting, I'm thinking of fun things to do to test the raw power of this thing once it arrives. Here's what I've come up with so far. Any more suggestions on fun things to do to stress test a Mac Pro? --Encode DVD's and compare the elapsed time to the same DVD on my old PC. --Encode multiple DVD's at once and see if there's any slowdown from encoding just one. --Open multiple VMware or Parallels Virtual Windows machines. See how many copies of Windows OS I can have running at once without slowing down OS X's response time. --Run and watch 'top' or some other Mac-specific system monitor while doing all of the above. More suggestions?