Track IR is worth every penny, and get the pro clip, much more reliable than the reflectors. A few caveats though, there is a learnin curve, but with the help of the people here i am sure that there is more than enough help to get you through. a few things though....
1) If you arent already, use FSautoatart, it makes a huge difference in performance all around, but especially when using the TrackIR
2) take some time to make sure that the area you play in is free from bright lights behind you. I make sure that any extra lights are shut off behind me and that the blinds are closed, simple enough.
3) Quit smoking. Nothing like being in a furball and having the cherry on your smoke mess up your view