The way I usually try to do this (I don't do much house wiring) is to lay out the circuits so that one room is served by two general purpose circuits, so that even if one circuit trips out, there will at least be a few working outlets in a room.
'66- it will be at least 3 more years before WV actually requires us to use AFCI's, we're just now getting around to adopting the 1999 NEC. As usual, if it's something good, we're near the last to get it, if it's bad, we're usually the nations leader.
Tom