I purchased (and subsequently sold) a Sony NEX-7 for an overseas trip to Paris in May 2012: it had the best image quality for its size, weight and price. With the 18-55mm "kit" lens, I was able to carry the camera everywhere in my jacket pocket. The Sony sensor has wonderful dynamic range, and at 24 MP we can make 11x14 inch prints @ 360 dpi.
For more NEX-7 photos, click here
Click here for photos made with Sony A7RII.