I had a chance to do a talk on profiling code for Microsoft's "Build Your Skills" event on March 24th in St. Louis (and March 31st in Minneapolis).  I mentioned a utility I'd written for cleaning up performance session files that are generated from URLs (so that only DLL/EXE remain.)  You can find that here.  In addition, you can find the slides here.  All sorts of fun details on profiling terminology, types of profiles, resigning assemblies (or turning off assembly verification), etc.  I'm hoping to record a screen cast of the talk soon...

Fantastic turnout at both locations, and really great questions - thanks to those who attended!