I have been admiring this device for a while and this gaming addon just brings the experience to the next level. The older versions you had to wear something on your head. This one mounts on your monitor and tracks your head movements. Might need to put this on my Xmas list this year, it has many uses outside of flight and space sims. You can play racing and first person shooters as well.
Here is a good presentation video on the Track-IR 5 which is only $150...
Another vid showing off all types of games
~S~
Found 2 problems, the movments of the user has be be kept to a min. Movement is also very choppy if you have a light turned on in the background and someone moves between it and the reciever lol