I have a few sheets that I've made to make my life GMing easier. Pretty basic stuff. I've got a combat tracker for tracking IP's and initiative, an abbreviated character sheet that is handy for keeping track of both PC's and grunts consisting of a condensed list of dicepools, damage tracks and favorite weapons, and a run log that I use to keep track of how much karma and nuyen I am giving out as well as to keep notes of any significant events that take place over the course of a run.
They aren't pretty but they seem to serve their purpose. I'm sure they can be improved on so I'd love suggestions too.
http://www.mediafire.com/?njmwzqiwyvc