Pentax K-7 & Lightroom 3 Beta noise reduction

I wanted to evaluate the noise reduction abilities of the upcoming Lightroom 3 release and to create profiles for my Pentax K-7. So I set up a small scene to photograph and used an AF540FGZ flash in wireless mode to light it. I increased the ISO from 200 to 6400 in one stop increments while adjusting the flash output. There was some variation in illumination however this is more of a preliminary test and I adjusted levels in Lightroom to somewhat compensate. You can click on an individual thumbnail to see the full resolution jpeg generated through Lightroom, however the files are limited to 2Mb.

ISO 200