Any of the small mirrorless systems is the way to go. I don't have a particular recommendation even though I own a NEX 7, because for 90% of people any of the current small format large sensor cameras will provide what you need whilst travelling. My experience is the opposite of Azrael's. I can't be arsed carrying a big body and huge lumps of glass around when you can achieve close to the same image quality as a DSLR with a smaller format body. I've done the whole 1 series body + L series lenses on trips through Europe and trust me you will come to hate carrying the bloody things around. My current system with lens weighs less than any Canon body on it's own! DSLRs are dead to me. I just don't see that the limited advantages (better AF) out weigh (pun intended) the disadvantages.