Seq Settings question

Hello

'bout to do my first HDV shoot, client wants the final edited frame size to be 854x480, DV/DVC Pro NTSC...question is: what settings are correct for this - I know to type in the frame size under seq settings, I choose custom, but what about pixel aspect ratio and field dominance? Do I choose NTSC - CCIR 601 or Square (final delivery is web though they may go also DVD)...do I check Anamorphic 16:9 or not? When is Anamorphic correct to use?

Thanks very much

K



KB
web.mac.com/kbcv