Search for a new digital camera

I am on the search again for an upgraded digital camera. My choices are narrowed down to Olympus e-500 two lense kit, Nikon 50 two lense kit or Nikon 70 two lense kit. I am trying to decide whther to buy now (leaning toward the Olympus e-500) or wait until after the Photo Show to see what is announce there. Guess I will try to call Jim at Cameras Etc and see what he advises. Cost will be $900 to $1,000 when I add some asscessories, so I want to make the correct choice for the long term.