Other Bags to Check Out:
Miles the Duffel 40L from Millican is a sturdy little companion for travel (so long as you don't have to walk long distances with your bag!).
The Blink & Wander packs from Timbuk2 are tough, rigid little numbers for travel with unfortunately weak feeling zippers.
The Headway MLC (Maximum Legal Carry-on) from Patagonia is a very functional gear bag that works better as a duffel due to it's uncomfortable (but hideable!) backpack straps.
The 50L duffel from Aasgard is a very exciting idea — massive space in a weatherproof simple duffel with backpack straps. (The shoulder straps could use an update though.)
A very well designed, stylish travel bag for one-bag travel with enough pockets, organization and access to make travel smooth.