There is only 729 days remaining from today (09/04/2012)when the support for the famous Windows XP is going to finish.
It looks like, there is lots of time, but trust me , if you don’t start to plan to go to the next step , the time will pass very quick.
It’s the time to pilot your Windows 7 deployment, if not Windows 8…
Just a reminder, or advise, which ever you want to interpret it 