After a lot of research, I bought a Wenger Patriot and I think it is excellent and extremely good value (you can find it for well under $100 online). It is ideal for overnight trips or for situations where you have lots of files or gear to transport in a carryon. It appears pretty big at first glance, but has fitted under every seat where I have had to put it under rather than overhead. The separate laptop bag that comes with it allows the rollaboard to be left (with a receptionist or in the rental car) and thus present a more business like appearance when visiting companies. I find it very flexible, well made and has fitted my needs perfectly.