george sibbald (1/3/2009)
Off the top of my head a possibility is leave the existing 2005 servers where they are and just upgrade the 2000 servers to 2008, to spread the load and risk a bit.
That's what I'd do in your place. Then when the next major version's released, you can upgrade the 2005 servers to that.
Gail Shaw
Microsoft Certified Master: SQL Server, MVP, M.Sc (Comp Sci)
SQL In The Wild: Discussions on DB performance with occasional diversions into recoverability