I've read before that the D70 doesn't take a battery grip and I don't think I've ever seen one - so I guess the answer is no! That was one of my complaints about the Fuji S2 when I bought it because I do like a vertical shutter release. I wonder about how sturdy a camera is with a battery pack on it for long shutter speeds when mounting the camera (not a lens) on a tripod. Might lose a little sharpness this way but it would be removeable.

In choosing a camera that's been on the market for less than a year (well, close to it) to one that's been on the market for about/almost three years, I think you'd have to find something you absolutely couldn't live without on the older camera to justify buying it. DSLR's are changing so fast that a three year old camera is almost a dinosaur. Sure, it's capable of great images for a long time but why buy old technology for the same price?