If you were to log in, you'd be able to get more information on your fellow community member.
Phil, I enjoyed your thread/perspective on RDBMS. My experience only extends from intial RDBMS with the AS/400 (2 + yrs worth), to present with SQL Server 6.0, and I've found (and found very quickly) that as an application developer, once you get involved with writing efficient stored procs & triggers and test/tune them to your app, the performance issue is nearly non-existant, even when 50 + users and getting in the way. I perform alot of my CS testing at home, using version 6.0, but the tuning aspects have been validated once they're in the production environment. Unfortunately, like everything else with Micosoft, you have to dig this stuff up yourself, as rarely does anyone volunteer the info, either via ignorance or selfishness.