My IR XT arrived today! Simply fantastic. Now I can't wait for the 5DmkII to come out so I can send my current 5D for conversion. I really prefer the 5D to the XT. There is a huge difference in image quality from what i've seen. I also like the controls and body better. (and full frame)
But anyways..... the IR only camera setup is fantastic! Tried with both the 35L and the 24-105L, I am getting great results so far. Whats even better...my results have been...indoors!!!!!! Impossible with the R72 filter or similar. (well not impossible...but not worth the effort) And the best part...I can shoot portraits in IR and moving action! Its definitely worth the money for conversion.

