You can view "ground tracks" for space station and other satellite passes at heavens-above.com.
You first have to provide them your general viewing location. Then click "ISS" to pull up a schedule. Click on the *date* for any given viewable pass, then click "ground track":
Here is a heavens-above.com ground track for the pass I saw from Manhattan(NY) on Saturday night (May 30th, 2009):
That would be the one we saw. It went straight overhead.
From the beach we can usually passes until it is just above the ocean, the clouds stopped that.
We can also see nighttime launches from here. If the Shuttle is going to the Station, we can see from about 10 seconds after launch until it almost goes into the sea. We can actually see the glow of the ignition of the engines when it happens, and then see the Shuttle come up out of the ocean. It’s very cool.
A view of this can be found on my youtube page at:
http://www.youtube.com/waccooga
Scroll down past all the new stuff....