Good one there...

I am using MKII and very happy with it. I am not a pro cameraman but I love photography. With MKII, I can easily bring the camera everywhere and I can fit it with an external mic or flash. Picture quality between MKII and MKIII (my friend has one) is somewhat the same looking from a naked eye.

It really boils down to what you want in a picture. For me, if the picture quality is good for my hi res screen and HD TV, then it will be good enough for me because I love to view the pictures using my computer and the TV. I seldom print them out now.

Cheers....