We have a mixture of high end, medium and very tiny dbs here on 2000. The cost to upgrade is astronomical for us being in a budget crunch. When we upgrade we typically get new hardware too so when we switch it all out our fallback would be to simply shutdown new server and power up the old one. Considering an upgrade to 2005 includes new hardware and with 2008 around the corner I cannot sell an almost half a million bucks to upgrade them all even with some consolidation in a budget crunch year especially when i tell them next year there will be a new release.