I know this isn't scientific, but I did a webcast last week with about 40 folks attending on the topic of Consolidation. I often ask polling questions to keep the audience involved. As has been the case for the past few years, I ask "What percent of your production SQL Server environment is still on SQL Server 2000?" I had a few indicate that they were totally switched to 2005, but about 60% of the respondents indicated that more than 50% of their production environment running SQL Server was still on SQL Server 2000. There are many reasons for this, but I would expect this number to be around 20% next year at this time.