I did a webcast on SQL Data Minning about a week ago, sorry it took me so long to post:

 

Question: Great Resource for Introduction to SQL Server 2005 Data Mining

Answer: http://www.microsoft.com/technet/prodtechnol/sql/2005/intro2dm.mspx

Question: any direction on how to scale transactional DB as opposed to the OLAP side?

Private Answer: This is a good resource, however it has not been updated - http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dnpag/html/scalenetchapt14.asp Also look at http://www.tpc.org/ for some comparisons

Question: Looking for some benchmarks

Answer: Check out the Transaction Processing Performance Council - http://www.tpc.org/

Question: More on Benchmarks

Answer: http://www.microsoft.com/sql/prodinfo/compare/benchmarks.mspx

Question: can we get his email again?

Answer: Yes it is john.weston@microsoft.com