I do most of my serious (amateur) shooting away from work with a D30 + 4 lenses. However, during work, I carry along a small compact dig. camera. It hardly takes any room (fits in my coat no problemo) & because it's always with me, I've been able to get some good picks.
Now, wouldn't that be great if the manufacturers could make a professional, but small version of the D1X or 1Ds or the like that would have the same image quality but 3 times as small.
You'd have a pro camera & lenses that you could easily cary around all the time.
I know manufacturing a complete lens lineup is a big deal, but just think of the possibilities.
Jules