One other feature with SQL 2008, which is seldom mentioned is the new multi-server query in SSMS 2008. This is a really useful feature where you can run a query across multiple servers in a server registration group and produce a single result set with the SQL instance automatically appended as the first column. Works against 2000, 2005, and 2008 servers. I've been using multi-server query since CTP 5 to quickly produce stats across the 150 SQL Servers I manage.