http://500px.com/Picsfor/blog/17468
Here is the link to my post on both items.
Regards shutter/ mirror noise - it was no louder than older models until you ramped it up to the 12/ 14fps. Then i think the speed of operation just couldn't be overcome. That might be a hindrance with wildlife, golf and tennis, but nothing else. So little did i notice it, i forgot to put in in my review - i was just impressed by the fact you could - and for 10 seconds.
Shutter options came in at single, low speed multiple shooting at 6fps (maybe 7) and hi speed shooting at 12/ 14 fps.
Weight is covered, slightly heavier than a 5D2 with battery grip, but improved ergonomics over come this.