Ken Rockwell is up and down. He generally knows what he's talking about but he has the objectivity of a 5-year-old. Take his recent comments on the high ISOs of the D3s, for example. Apparently they're stupid because he can shoot moonlit pictures handheld. Apparently moonlit landscapes are the only thing to use high ISOs for. Apparently everybody is the same as Ken Rockwell. I keep up to date with his site but there are better photographers than he on flickr and Panoramio. His finger is on the pulse but I'd take everything he writes with a grain of salt.
That said, with what he wrote on the D3000... well, I'd take your D70s with you and have a play around with the D3000 before buying it. It may well turn out to do exactly what you want it to do and be ergonomically sound. I just try to encourage everybody to not be shy, and ask to try before you buy.
The best reviewer for a camera for you is you. Try it. For you, the D3000 may be awesome. It may also be a terrible disappointment.
One last little point: Such is the improvement in firmware, the D5000 actually gives better image quality than the still-$1600 D300. The low-light noise performance is BETTER. By all accounts, the D5000 is a marvellous camera, and if you can save a little bit more money and buy that instead, you'd be making a good move.
I sincerely hope this helps. I just don't like the idea of people being ripped off or misled.