I'm looking for a new laptop bag to replace my Targus backpack. Which is a better quality bag manufacturer: Crumpler or Timbuk2? I haven't narrowed down which bag I'd want from either manufacturer, but I'm leaning in two directions. I want a messenger-style bag, but I'm leaning towards a standard messenger with a sleeve. That way, I can use the bag for something other than a laptop and not have wasted space due to the integrated sleeve and I can grab my laptop w/sleeve when I don't want/need to carry the entire bag. Now the question is which manufacturer makes a better bag? It'd be nice if someone has experience with both. TIA.