Mike Hagen at Out There Images has a suggested set-up guide for the D7000 which you can download from his website www.outthereimages.com - click on the Publishing tab and scroll down to find the Guide.
Also Thom Hogan is a terrific resource on just about everything you'll need. His website www.bythom.com will answer many of your questions and he has a new book just out for the D7000 which will be a very valuable resource for you. I just got it, and its very complete.
You can shoot very fine JPEG's with a D7000 which will do for just about anything and be "instantly" shareable. If you are "into" post-processing - and sometimes, for some, this is an integral part of photography (just as the dark room was for film) - then you will want to shoot RAW. Of course you can do both, and remember every Nikon RAW file embeds a basic JPEG.
I either shoot RAW only or RAW+JPEG Normal, depending on the situation.
Enjoy your D7000 - it is a fantastic camera, but it does have a learning curve ... and that is half the fun!
When words become unclear, I shall focus with photographs. When images become inadequate, I shall be content with silence. - Ansel Adams