Glad to help. I figure if I'm going through the effort to calibrate the display for myself, I may as well share my findings so that others can see what this TV can do.
I'm pretty new to plasma display, but I don't consider IR a problem. To me, it's inherent to the technology. Plasmas have IR, period, but some seem to get it easier than others. From what many here on the forums say, the Samsungs tend to get it easier than some other brands. I have seen no data to back this up though.
It's one of the issues that I've decided not to be fussy about as long as I don't notice it during normal viewing, which I don't. This Samsung throws a fantastic picture, period. I have IR too, and it doesn't take long for it to show up, but I only notice it if I intentionally put up a black or very dark screen right after I've had something bright showing, like white text or the menu.
I watched Ratatoulli(spelling?) last night with the black bars showing on top and bottom and didn't notice IR after I was done watching the whole movie. I don't look for IR though, like I said. It may have been there, but I switched to over-the-air HD programming right after that so it probably got washed away right away. If you don't notice it during casual viewing, I wouldn't get worked up about it.