Trackir is somegthing for the future :)
The beamer is an Acer X1160, a DLP projector with an 800 X 600 resolution. I have been using it for quite some time now, and havent encountered any of the drawbacks i was afraid of. When using it with my Xbox 360, i have never noticed any framerate issues, and the beamer converts the HD signal from the console into a super sharp image. As For DCS, i really don't see when people spend 300 dollars for a 24" display when they can buy this setup for around 450 :)
As for the heat, i have never overheated it, even after using it for 5+ Hours. Speaking of hours, the lamp is rated for 3000 hours. After almost a year, i have racked up about 750 hours. which is an avarage of 2 hours.