Some folks of my team at my earlier job have good messages as their IM status message. I will omit the mushy ones and like to quote a few good ones.
"I will give my right hand to be ambidextrous" - Benjamin (not exactly my team member, but the tech dude at the client side)
"Blessed are the flexible for they shall not be bent out of shape." - Anand - poor guy was trying to adjust to a 11 AM -10 PM work schedule.
"Behind every successful man stands a surprised woman." - Naveen - many will be surprised at his success. ;)