I will be traveling around Austria (and Alps) next spring and will be carrying my photography gear with me. I have a Canon Rebel T2i, a prime and a telephoto lens, an external speedlite, CPL filters, etc. (no tripod). Not a lot, but still the basic kit one would need. I have never traveled abroad with all this gear before. Even though its only a week long trip I would have my clothes and my laptop with me too.
So, my question goes out to the people who do a lot of travel photography. What kind of backpacks would you suggest for this kind of trip? As I have to go through airports, it should be acceptable for that as well. How do you guys travel around with all your stuff and the camera gear (especially when hiking)? I don't have a big camera bag where I can put the camera gear right now. I don't need exact product details but just advice from people on the type of bags they use for such trips.