@purephase
well i don’t what bands you like, but you can use the “Find People” feature, or go to a band’s website and/or myspace, and see if they twitter. recently, a rather large list of bands that twitter was released (check pitchfork and stereogum for those).
as for CNN, this is their breaking news twitter: http://www.twitter.com/cnnbrk
you can also go to twitterholic.com, where they’re listed by order of popularity, and find feeds you like or think sound interesting.