Hello all,

I was wondering if you could help me. I will soon start my big trip and am getting all my gear ready. So I am going to take a lite backpack with me and will also take my laptop with me. I know this is not exactly classified as traveling lite but I was wondering if anyone could recommend a brand or a kind of style I should get. Is it better to go for a messenger bag or a backpack? I have been browsing for quiet a while now but just came across sites like this this but still I think I would like to hear some reviews and personal opinions.
This is my first big trip (for a few months through South America) and I wanna be prepared.
Thanks so much!
Laura