Dude, assuming you mean Brighton, Mass... of course there's a metal scene! It's Boston! Lots of bands come through, just check out venues around the city. There are Newbury Comics on Newbury Street and in Fanueil Hall and in Cambridge, which sell metal CDs and paraphernalia.
I was in Brighton, England and I only remember a guitar shop there, which looked pretty cool. Otherwise it did not look like a very metal city, but I've found this, which might interest you: http://www.myspace.com/brightonmetalscene