I'm the proud owner of a new D7000. The issue about photo size isn't a big problem with software like OnOne Software's Genuine Fractals (Now Perfect Resize) Photoshop plug-in. I've been using it for nearly 20 years. The D7000's 16 mpix is more than enough to allow for clen shots at ISO 4500 enlarged to poster size.


Bob
Nikon D800
Nikon D7000 DSLR
Nikkor 85mm F/3.5 Micro, 18-200 F/3.5-5.6 VRII
Nikkor 24-70 F/2.8, 50mm F/1.4D, 70-300 F/4.0-5.6G