They use the book Clinical Examination, by Talley & OConnor in Oz. I don't use it much any more, but was good when I was learning the basic clinical skills. It is in the 4th edition and has pretty good detail about the meanings of bizarre nail changes in such-and-such disease. It's on my list of top 5 must-have books for medicine at my uni, though.
There's another series, called Lecture Notes, which has a clinical skills book. I've heard people speak highly of that one, but I've never used it myself.