Greetings.

I just received a D70 as a gift (and what a gift!) and I'm trying to puzzle through the jillions of things it does. Some things I am confused about that do not seem to be answered in the manual:

1. What is the practical difference between Auto and P mode?

2. I am used to having a compact digital, where I could turn the flash off whenever I damn well pleased. Now it seems more difficult to do. So... How do I turn the flash off?

3. Related to #2, is there a particular good choice for indoor nighttime shots? I hate how harsh the flash is, but sometimes you just need it, if you don't want to push up the ISO or have shaky hands and no tripod (happens a lot).

Thanks!