Shamelessly stolen from Scott Hanselman's most excellent Ultimate Developer Tools List, Task Manager Extension is one of my favorite new addins.
Oh my God, I was always looking for something like that!!! Thanks you so much!
Just found this, and it really is brilliant.
Y’know Jeff, you should also do a list of developer tools you use - I found out about Beyond Compare from your blog, and just saw this mentioned, and am sure you can recommend a lot of other useful tools.
Well, I’ve since switched to Process Explorer:
http://www.codinghorror.com/blog/archives/000162.html
Another great extension is PRIO. You can use both but you lose the priority save function.