If you haven't had the chance to check out channel 9, you're missing out.

Our team has put out two videos since the launch of beta 2; I highly recommend you take a look at them when you get a chance.  In this screencast, running just under 9 minutes, I give a brief overview of the new profiling capabilities coming to Visual Studio 2010.  If you have about 45 minutes free, make sure to take a look at the team interview where members of my team dive deeply into parallel performance profiling advancments.

For a really nice overview, read John Robbins' Blog describing the concurrency visualizer in VS2010.

James Rapp - Parallel Computing Platform