A client would like to point a webcam in the direction of a building site and the captured images are to be uploaded to their website and refreshed every 60 seconds or so.

To further describe what I'm after have a look at the webcam for the newly completed Wembley Stadium in London.

What are the best webcams for capturing a decent image such as this?

Clearly there's the issue too of whether or not an indoor or outdoor webcam is suitable.

Any tips/help would be great. Thanks.