Platform comparison ...

Hello Group,  I need your help, in putting together a list of comparisons, and good solid technical reasons, to why to
usePostgreSQL over using Microsoft SQL Server.  Right now, we are using PostgreSQL for a back-end for some of our web
stuff. A couple of our developers, which are Microsoft VB developers, are complaining about not being able to use
proprietaryMS stuff with PostgreSQL.  I have told them to use standard SQL92 compliant programming techniques, and all
willwork just fine.  They just don't seem to understand why a person wouldn't use SQL Server.  If I could put together
alist of good solid technical arguments, (Performance, Support, Reliability, ETC.), as to why PostgreSQL is better, I
thinkI can make a good case in keeping PostreSQL.  I just don't have any SQL Server experience to compare with.  If any
ofyou, who have SQL Server experience could send me good technical comparisons of SQL Server vs PostgreSQL, I would
greatlyappreciate it. 

Thanks in advance,
Dale Anderson.