Currently, I have a Nikon CP 5700. It's a great camera, but I can't help wanting something a little more advanced. I hate the camera's autofocus in low light, and the long lag time when taking pictures. I'd like to stick with Nikon for a brand, what would be a good DSLR to go with? I am quite firmiliar with all of the settings of the 5700, so I'm not a complete newb, and I don't want anything that will break the bank either. What would be a good Nikon DSLR to go with? D70?