I've recently picked up a Nikon D80 and am looking to get a bag to not only carry that around, but my 12" PB as well. At the moment I've only got the 18 - 135 kit lens, but over the next couple of months will probably add a couple more lenses. So basically, I want a bag that will hold my D80, some lenses and my PowerBook. I've had a look at the Crumpler website and it looked like they had some I might be interested, but there's nowhere near me where I can have a look at them in the flesh. Anyone got any recommendations for a bag? I'm open to suggestions other than Crumpler and I'd like a messenger bag as opposed to a rucksack.