hi here is my bit of opinion too
i just came back from HK working as a summer clerk position with a big UK firm and i am aussie student. it is right to say that it would be a consideration whether u willing to relocate; on top of it, u need to show them your special interests in, say traveling or multi-cultural experience, these are what they value a lot. well, might only apply to international firms, i am not sure about local firms.