I snagged a LowePro Slingshot 202AW and lugged it almost all day today. It is great to use, just like they say, slide it around and get the camera. I took over a hundred photos. So far I like the 202AW a lot, but would like to see some extra straps, like they have on a backpack for a rolled up light jacket or fleece. The tripod holder works good as long as it's a small tripod. I wanted a water bottle holder, but they seem to be "out of stock" everywhere, maybe they don't make 'em anymore. And the other members comments about the camera area being slightly too large is correct. I am going to look for some closed cell foam to fix up the inside a little for a snugger fit. So far the D3100 is a dream, I started using the view finder instead of LiveView, and must say I like the Viewfinder better. Some of the photos I took today can be seen on FaceBook, Portland Maine History 1786 To Present, Album#10.
Thanks, John