For all those who live in or around the philadelphia/PA area, there is a band called splintered sunlight who have been playing Grateful dead music for many years. They play every thursday just outside of philadelphia. For a 6$ cover charge its a great time. I highly reccomend seeing these guys. There are a lot of dead cover bands, but these guys are one of the best. Check out their website for more info and directions http://splinteredsunlight.com/