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
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: Yes it is firstname.lastname@example.org