How does it feel?
When buying a camera, one of the most important things is that the camera feels right for you.
Most of the cameras available have many sophisticated features and are technological wonders. However, it is important that the camera you buy is the one that suits you best. So it is a generally a good idea to at least hold and feel a camera before buying it.
In making some of the cameras small, the controls on some have become rather 'fiddly' to use. A trip to one of the high street specialist stores might be a good starting place to get the feel of some different makes and models of cameras.