Geoff, you have to have a camera that can manually focus generally, yours would probably work. You use a tripod, and take a bunch of pictures, each with a different distance away in focus. Like one with the skyline in focus, and the car slightly blurry, then the front of the car in focus, then the rear, then the bridge, then the river, etc. etc. etc.
After you've got your collection together, you can use the "merge to HDR" function in photoshop.
Enjoy!