Back in the 80's or 90's I watched the ISS fly over with the Shuttle in hot pursuit about a second or three behind closing in for docking. Fantastic!
This link will show when the ISS will fly over a particular location:
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And this link shows where the ISS is in orbit and it's orbital path:
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Cool.
I did see the ISS & Shuttle come over London, when they were doing the repair to Hubble - luckily it was at sundown, so it was really catching the light, otherwise the city light pollution would have scuppered the view.
Nothing like as good as the view I got last night though - less light pollution where I am at the moment (and streetlights have since been redesigned to reduce light pollution levels), the ISS is much bigger now, and the fact that it was in a clear sky, heading towards the sun made it stick out like a sore thumb.
I remember being at Space Shuttle Discovery's final launch, and then later that evening talking to my parents, back in the U.K. who had just watched the shuttle chasing the ISS across their night sky (5 or 6 hours later in the evening relative to launch in Florida). I would have liked to have seen both, but at least I got to see Discovery land too.

