Hi Betsy,

Two quickly come to mind: the Oly E-620 and the Pentzx K-x. They're smaller and lighter, and are backed up by a lot of very nice lenses.

Then there are the µ4/3 cameras from Oly and Panasonic, and the new Sony mirrorless system, which is perhaps too new for a serious look yet. Any of these will be smaller and lighter than any dslr. It's the segment where the most exciting camera developments are occurring today.

Cheers,