My favorite troubleshooting tool just got updated. Process Explorer now is at version 14. It packs couple a new features.

This major update to Process Explorer adds a slew of enhancements and new functionality including network and disk monitoring, an improved multi-tab system information dialog, additional memory statistics, a new column that shows aggregate CPU usage for a tree of processes, improved DLL scanning performance and accuracy, command-lines in process tree tooltips, support for more than 64 CPU systems, and more.

Source: blogs.technet.com/b/sysinternals/archive/2010/11/16/update-process-explorer-v14.aspx