mike,
The problem really is that today's lenses aren't capable of
resolving much more detail than the current 6MP cameras or the 1Ds
with its full frame sensor (the photo receptors are fairly close in
size between the two, just the 1Ds chip is much larger). If you
notice, the new 1Ds sample images are almost always shot at F8 so
as to get the best possible image. I notice that very clearly on my
D60. At some aperatures there is a NOTICEABLE drop off in image
quality.
So, until the manufacturers begin making new lenses that are
specifically designed for the higher resolution digital cameras,
those extra pixels aren't going to do you much good, except for
cropping.
As to the camcorders, the reason that they have pretty much topped
out is the output (TV) is roughly equal to a 640x480 image. You
really don't need a very high resolution camcorder for that

With
the new push for HDTV, I am sure that you will see an entire new
round of camcorders with each one pushing that it is designed for
the HDTV sets.
I am sure the manufacturers are chomping at the bit to get started
Good luck!
Mark
--
Truly great madness cannot be achieved without significant
intelligence.
Henrik Tikkanen