The Big Two should be announcing new cameras within a week or two. Canon's 50D has already been leaked and you can Google for specs. It's a 15-megapixel camera but still has a small sensor with a 1.6 crop. Dunno about Nikon cuz I don't follow that stuff. Personally, if you're thinking of plunking down dough for a new body I would recommend you seriously think about which you'd get more mileage out of? A new camera body? Or, some new glass? Or maybe, some lighting gear.
BTW, new updates on both my blogs:
I, Shootist
Pretty Girl Shooter