Hey Jamey there are two jamborees that are within a reasonable distances of your location. The first is in Lima, Ohio but it has already passed for this year. It's in late May, and will be back for 07. The other one is in Bloomsburg, PA and will be next month August 18-20th. As for DHRA sanctioned events, check out the link below and look for a loaction that interests you.
http://www.dhraonline.com/?GROUP=series&PAGE=indexsched