<p>The good thing about lots of pockets is, well, lots of pockets. And it's the bad thing too - which pocket holds that spare battery? You have to be well-organized and place things in the same pocket each time. But I have found pockets extremely convenient, much better than hunting around in a bag. I use "cargo" pants and a jacket, mostly.<br>
As for brands, you might consider something that does not shout "photographer" especially if you plan to wear them in a city or other place you might be subject to attempts at theft. In the US, Cabelas is one brand I've used a lot. But the camo jacket I mostly use cost me $5 at Goodwill. Make sure the pockets are big enough, and have reliable closures. Zips, velcro, or ideally both? I have sewn steel loops inside my pockets so I can attach cords, especially for GPS and compass, but that could work for photo stuff too. Hope that helps and gets a discussion started.</p>