Don't really have to chase them where I live. I just go out to an isolated spot, set the camera up and most of the time if there is any activity, even if my eyes can't see it, the camera will pick it up. Modern cameras are really amazing in that regard. And in general, over the years, camera makers have become friendlier to astronomers and their needs, with Nikon in particular releasing a 60Da with features and a sensor tailored to Astronomy.
In general, you don't really need all that much to capture them. Just a good camera with a good sensor, and some patience. My best results have been when I haven't really been looking for them!
Here's an example of one such time, taken on March 16th, 2012, both at 15 second exposures:
Another, when we were just trying to shoot a constellation in 2010. Bam, there it was! We didn't realize there was even anything out there.
All my astrophotagraphy pictures are done on a Canon 7D.