Hi guys, I'm going to be buying an OM-D for travelling instead of my 5D Mark II. One of the biggest differences is going to be the battery life...my 5D2 can do 1,000 shots on a charge no problems...if I'm actually careful, that number skyrockets to close to 1,500. So...tell me...what drains the battery on the OM-D? Does "sleep" mode drain much? (I always have my cameras set up to go to sleep after 1 minute, but I never turn them off). Will I have to turn off the camera every time I'm done shooting? Or can I just turn it off at night? On some cameras (NEX-6) the EVF drains the battery faster than the LCD...how's the OM-D in this regard? How close is the CIPA rating (330, I think) to real-life figures? I'm not planning on using the touch screen at all...in fact, the LCD will only be used to review images to check focus/exposure, but that's it. All composition, etc will be done via the EVF. Thanks!