I use Capture 4.4 and CS2 and like them both alot. However, I just downloaded the newest version of NX to try out. WOW....I am impressed. It seems NX really does a great job extracting every bit of color and detail from RAW files from all my cameras, especially the D2x. Now for my question. I don't mind buying NX, but couldn't I just upgrade my copy of Capture 4.4 to NX? I looked everywhere in Capture 4.4 and can't find an "upgrade" option. Any help would be much appreciated!