Designer Computer Bags

What are nice and affordable brand of leather duffel bags?

I plan to use it on quick business trips so it has to have that little formal looks. Any suggestion will be greatly appreciated.

Public Comments

1. You can find lots of even designer leather bags at Goodwill. Hardly used.
2. I would say like Country Road or Witchery or something like that. Except I think they are only Australian brands so it depends where you live.
3. How about checking these bags online? http://www.therosedress.com/Handbag/Handbags.asp