A Personalized Concert and Album Release Calendar For iTunes.
iConcertCal is a free iTunes plug-in that monitors your music library and generates a personalized calendar of upcoming concerts in your city. It is available for both Windows and Mac OS X and supports worldwide searches.
When iConcertCal first starts up it will try to automatically figure out what city and state you are in by checking your ip address. But you can easily change your current city and state to search for shows in another town near you.
This download is for all Windows versions including Vista, it is a free-ware plug-in.