More than you'd ever want to know at:
http://www.onebag.com/bags.htmlPersonally, I use the Patagonia LBC (now discontinued) or a super-lightweight messenger style bag I got at the Gap (of all places) in Bath, England. I've been from Japan to Europe and many places in between with the former, and all over the U.S., Mexico (including Chiapas) and Hawaii with the latter.
- Steve