That's right, I remember those now. I'll have to throw that around in my head to see if I would benefit from this.

>Yes, I use uniqueidentifier for my PK. Actually, GUIDs are preferred if you need replication and/or offline access.
>
>>Do you use SQL Server uniqueidentifier type as your Primary Keys? I did a little research on that a few weeks ago and found that identity integers were perferred, but ASP.NET Membership uses uniqueidentifier.