Hmm that's a big homework isn't it? [xmasbiggrin] however I'll sure do it if I have the time this weekend! I'm still trying to figure out some of the settings and options on the D90. As for now, even if I didn't played around alot with it. At this early stage I can clearly see a difference between 6mp & 12mp. especially when cropping... I also think the bracketing is a very usefull feature when I'm not quite sure about the exposion and I don't have the time messing around with settings (especially with animals). 4.5FPS versus 2.5 for the D40 in continuous shooting mode does also make a difference with moving subjects. Status LCD & Autofocus... I know there's much more feature on the D90. But theses are the ones I particually like so far...