Replying to Broke my shoulder bag, recommend me a new one!

So my cheap shoulder bag finally gave in to the weight of my mamiya today, so now I need a replacement. Needs to be able to fit:

mamiya rz67 w/ lens
2/3 additional lenses or my 5d and a lens
film/filters/blower/etc

things i would like(but not required):

tripod straps on the bottom
laptop compartment for a 15" MBPr
all black
well padded strap

price isn't to much of a concern, but lets keep it reasonable, if i wanted to drop a shit load this would be an easy answer