Strangelings this week
http://www.sugarman.org/index.html
I caught him late early 80s maybe late 70s.. cut an album stateside never did anything .. few years later it starts going crazy down our side of the pond .. tours and fills venues the same size of many big names mentioned above.. goes home and gets a day job .. never even plays a gig in his home country.
And
http://en.wikipedia.org/wiki/Ted_Hawkins
Another who despite being locked up for a considerable part of his life.. sitting on a milk crate down venice beach belting out a few songs on there jail issue guitar gets noticed and shared with the masses.