[ck2]

Even I wouldn't run Windows XP past December 2014. Install to exploit time would probably be under an hour.

Trying to get a migration plan in place. I'm extremely comfortable with linux but not sure if I want to run it as my desktop.

[nitrogen]

If you have essential software or hardware that only works with XP, you could buy a cheap wired-only router for each of your XP systems to keep them isolated from the rest of your network (which a friend's skeezy laptop might be trying to exploit without her knowledge when she brings it over to collaborate on a project).