Anyone know the issue with the lack of batteries for the 5dm2 on the market? I know there's obviously a lack of quantity that canon released/manufactured. But has Canon released any kind of date when they plan to have then recirculated into the marketplace? I usually buy from B&H, and I've had to pay a premium fee to get them elsewhere as they are marking the prices up. I guess people are rebelling against the markups, but unfortunately I have a few full day shoots coming up and I'm pretty sure that 2 batteries in the grip won't last the entire day with no breaks to charge them.