it really depends on what you will be doing..
Do you need to do quick shooting or normal shooting? Coz for me, i normally do quick shooting, so lens will have to attached to the body with the lcd screen facing up.. So, whenever a moment of opportunity arises and its only for a few seconds, and I want to take the shot, all i need to do is take the camera by the grip, point the camera, do adjusting damn quick and shoot!! Well, thats for me though.. It really have to depend on your individual needs..
anyway, dun fret about it.. Just pack your camera as the way you always do and see how.. and i guarantee you will change your style of packing as the way you want it..
EOS 30D+50mm MKII+18-55mm IS.. What I use do not define me.. Its the photos that I take that will..