Just bought a used Nikon D300 c/w a Nikkor 18-70mm f/3.5-4.5 lens and a battery grip (chinese knock-off). I'm upgrading from my Nikon 3100.
My next purchase will be David Busch's "Nikon D300 Guide to Digital SLR Photography". Boy, the manual that Nikon supplies sure is tough to read and understand.
Looking forward to getting out and playing around with the new camera. Fooled around with it indoors, today. Learning what a lot of the buttons do. Tried different settings and so forth.
Here's one of my practice shots. Nothing spectacular but I'm happy.