Thanks to Stereogum for the tip on iConcertCal, a free iTunes plug-in that uses your music library to generate a personalized calendar of upcoming shows in your city. Click here to download. Though not comprehensive (it appears the dates are pulled off Pollstar), this app. is even cooler than it sounds and could not be easier to use. It includes information on the venue and opening acts. What a great way to keep on top of when Luna Halo are playing around town. Enjoy!
Just don't try searching New York City, it's depressing.