I know there's still a bunch of you guys being "addicted" to Track IR or triple monitor setups for your simming BUT..
Oculus just recently dropped their's Rift price by 100$. When you get Rift + Touch bundle it only comes to £598 now.
I can very much recommend this solution for any kind of PC simulation. It's impossible to describe in plain words, what you get through VR headset and smooth running, beautiful looking sim like FS2.
Just get your wife's credit card and BUY IT!!