I've just purchased an E-PL2 along w/20mm pancake. I anticipate at some point purchasing the 14-150 (would only carry either kit lens or 14-150, not both) and also a flash. Is the Crumpler 3MDH big enough or should I go w/the 4 million? It's hard to tell from the pictures and there's quite a big difference in price. Any help would be appreciated, thanks!