Well short of going to a full frame camera, the K-x is the best you can get for shooting at high ISO from any manufacturer.
I have shot about 15,000 frames with mine since getting it a couple of months ago. The worst thing about the camera is how it makes you question the use and price of your high end bodies (K20, K7). They have things about them that are better, but when it comes to image quality, the K-x can't be beat. What I did was to purchase one after looking at many images thinking I might return it if it wasn't enough difference. I ended up keeping it. It is now the camera I choose to use most of the time, leaving the poor K20 sitting there all sad. I routinely shoot the K-x in jpg. The processing engine is vastly improved and the quality at high ISO is hard to beat, even in PP - Pentax really did this body right. Mind you that I am a hardcore RAW shooter from way back -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.