I bought the Lowepro Apex 100 for my Panasonic Lumix DMC-FZ28 and the camera fits in your pocket as the two for each other would be made. The padding is soft and the bag is beautiful stable through the sturdy materials. A soil protection ensures that you can drop them off sometimes without being dirty too. Also the rain cover is a very convenient feature.
The bag is ideal for hikes and photo tours in nature, and so light that it does not become a nuisance even after prolonged carrying around.