https://www.crumplerbags.com
may have what you want, I have the shrinkle which is a backpack that also takes my laptop (not what you want, but I'm showing familiarity with brand
) It is very comfortable to wear all day and has all kinds of sneaky/useful pockets to squirrel stuff away.
Specifically have a look at the Brazillion Dollar Home (Their names always rock)
https://www.crumplerbags.com/flash/f...ome-bz01a.html
Review -
http://blogs.zdnet.com/Apple/?p=755