Okay before I was shooting with a Nikon D80 with 18-135mm lens and a SB600. I used M the shutter was 1/25th and aperture was set at 3.5. The picture I was taking was at an anniversary party, everyone was standing next to each other, no movement much. Now, I upgraded to the D300 with 18-200mm VR with the same SB600. I shot quick moving pictures in P mode with auto ISO on. The max ISO I allowed is 1600. The min. shutter is 1/15th. I may sound like a noob but can someone explain to me how come when I shoot with the D300 all pictures come out clear and not blury, where as the D80 settings I get blur in most pictures. Also can someone explain to me how light metering works in M mode compare to A,S,P. Or if you can have a link I don't mind clicking and reading. Thank you.