Robyn, > We have a fairly large, truly mission critical database (Oracle > 9.2.0.6) at a remote site that is currently running on Microsoft. Two thoughts for you: 1. Does your sys admin staff have significant Unix experience, or are you planning to hire? 2. You say remotely. I agree that either system can be made reliable in the proper hands, but my observation is that Unix has a stronger concept of being administered remotely. Dennis Williams -- //www.freelists.org/webpage/oracle-l