So what are the best unsigned bands in your area? Obviously 'best' is subjective but every town/city has a few that are clearly more exciting than the rest. I'll start.
Liverpool - Outfit http://soundcloud.com/killer_everynight
Chrik http://chrik.bandcamp.com/
Ex-Easter Island Head (don't have a web presence to my knowledge but they make wonderful ambient sounds through experimental methods e.g hitting guitars with mallets).

Go!