Hi all;

I am about to order a Canon Digital Rebel XSi to replace my 6MP first
generation Digital Rebel, but a question occurred to me and I honestly
don't know how to answer it.

I own a very nice Canon lens. It is a Canon f2.8 24-70mm UL lens, for
which I paid something like $1,100 a year ago. That lens is great, but
it weighs a ton.

The Canon XSi has an f3.518-35mm kit lens with image stabilization. I am
wondering if I would be better served by selling my 24-70mm Canon lens
and getting the kit lens with the XSi, or perhaps keep both lenses. The
strength of my 24-70mm lens is it has great optics, and its fast.  I
also own a Canon f5.4 70-300mm lens, which I intend to keep.

I like my 24-70mm lens, but it weighs too much to carry it around all
day, and it is very bulky, but I am not sure if that kit lens would be
as good, in terms of its optical quality, or do yo think most people
won't notice the difference anyway? With the IS capability of the XSI's
kit lens, it seems to me, that the major benefit of the f2.8 aperture of
my 24-70mm lens is no longer a big advantage, or am I wrong about that?

I like to shoot photos of night scenes, so low light photography is
important to me. I am an amateur photographer with a limited budget, so
I am thinking I might be better off selling the 24-70mm lens to offset
the cost of buying the XSi.

What do you think I should do?