I'm using MyEclipse for Java development, and one thing that I dearly miss about Emacs is keyboard macros. I'm doing some operations that require some highly repetitive actions--and having to retype the same stuff all the time is driving me crazy.
I found a free tool called AutoHotkeys that while not quite as elegant as the Emacs keyboard macros, works with any Windows application, and lets you do some pretty neat stuff when you have certain keystrokes, mouse actions, etc. that need to be run repeatedly. You invoke them with the Windows key and other keys that you pick.