I've been on an ongoing quest for the perfect bag. Of course what constitutes "perfect" changes as my equipment list does. Right now, my priorities are for a shoulder bag that is relatively small (especially with regards to how far it extends from my body - "low profile", let's say), but also weatherproof and flexible enough to easily handle a variety of different combinations of equipment. Basic capacity needed: enough for K200D and say, 3-4 small lenses (to be chosen from DA limiteds, M primes 135mm and less, 18-55, or 50-200) and a minimum of additional accessories (batteries, Raynox 150, etc).
Sounds like a common enough request, but neither Tamrac nor Lowepro seems to really nail this. Most of their bags are bulkier than seems necessary for the capacity. The Crumpler million dollar series has the right reputation, but they aren't particularly cheap, and I've never seen one in person, which makes me hesitant as bags are tough to buy on pictures and specs alone. Plus the loud velcro several people have mentioned sounds like a drag, if they haven't addressed that adequately by now. The Quantaray Euro Messenger Bags - which one can see at any Ritz - look like rebrands or copies of the Crumpler bags in some respects from what I can tell, but they seem a bit awkward to load and unload. And while smaller one seems a bit cramped for me, the larger one is a bit larger than I really need. There others too I've heard of but never seen; they haven't really been on the radar for me.
Enter the Kata DC series, which I just encountered for the first time at Denver Pro Photo. Similarly unassuming outward appearance (if different in style) as the Crumpler bags, similarly low profile for the capacity, and they seem reasonably weather resistant as is but also come with a rain cover. They had three sizes in the store - 435, 439, and 441 (I think). The middle one - DC 439 - was close to perfect for me. Maybe slightly larger than I would need most of the time, but that beats being too small, and like I said, it's still a fairly low profile bag. Kata also lists a DC 437 with slightly smaller exterior dimensions but identical interior dimensions, which doesn't really seem likely given they are otherwise the same design. Would have been interesting to see these side by side, but that wasn't an option. As it was, the 439 seemed like a good enough fit, and the "content demo" picture on their site make it look like the 437 would be just enough tighter to limit my options. So for $45, the DC 439 is my new bag:
Video bags camera bags Kata - Manufacturer of camera bags
The nice thing is that same design actually comes in *eight* different sizes, so if the basic idea seems right to you, chances are one of them will be the size you want. The smallest looks good for a K-m & DA40, for example, and the larger ones for a K20D with grip plus the DA* zooms, flash, and more. And if I found one in a store, that must means they do sell in stores, so you might have some chance of finding one in person too (apparently they are distributed by Bogen).