What do you guys use as a camera bag when going to the parks? Right now, I have the bag that my original camera came in (D60) I have since upgraded to a D7000. My lenses include: nifty fifty Nikon 28-70mm 2.8 Tamron 18-270 I also have a nikon speedlight (doubt I'll bring this though). I have a backpack now that houses all my lenses and laptop, but don't want something as bulky. Was thinking about one of the sling bags, but didn't have any knowledge of them. I want to at least have my tamron and 28-70 with me. Thanks.