I use a sling bag
I think this is the one:
http://products.lowepro.com/product/SlingShot-200-AW,2035,4.htm
I usually carry my 400D with fully loaded battery grip, 50 1.8 (which is weight-less), 17-40, 70-200 F4 non-IS, 430exII flash all together in this bag
occasionally may also carry a tripod that weighs about 1.4kg on the other shoulder
so far I found this ok for a girl like me
if you are a guy you probably can carry heavier gears with no problem |