You can choose the database collation in 2K according to your requierments. RebuildM.exe will wipe out all your logins, DTS packages etc. TBH you are better off changing the default collation and then converting your DB (painful, but worth it in the end). Having a master, or more of a pain, a tempdb at a different collation to your data database will cause you to jump through more hoops that you really want to (yup, this is the battle scarred voice of experience here). BTW has anyone gotr a full list of collations and what the are (for example, what is the code page of latin1_General_bin and is it unicode compliant?)