Agreed! Indie and britpop are very open so other influences can easily make their way in. I like both old and new britpop, though. Lately I've been getting into acoustic Coldplay. Radiohead's awesome, too, especially their live performances with 'Creep'. Guitar abuse..
Keane. Snow Patrol counted? And of course our very own Electrico, Marchtwelve and The Great Spy Experiment (amongst others. Gotta love our local indie rock scene)!