I know it's a bit short notice (I kept forgetting to post this), but the annual Buffalo Irish Festival is this coming weekend.
http://www.buffaloirish.com/irishfestival.htm

The music is usually outstanding, the dancers are very good (they be better than that - I'm no judge), and for those who like Guinness, Harp, and/or Smithwick's there will be plenty to go around.

I'm planning on being there all three days this year - there's too much to see and do in only two.