trendy- they're a punk band . their stuff's really good. some of it's political, but not too much... they're not on iTunes, so check them out on myspace or something... 'tie the rope' , 'united state of stupidity', and 'cause and effect' are my favorite.
royal bliss- they're a band from salt lake city that's really good, but hardly anyone's heard of them. they're very high energy, kind of have a punk/metal sound. 'devil's and angels', 'here they come' and 'brave' are some of my favorite songs.
i have some good Aussie bands that aren't greatly known, but i love them
Gyroscope (a lil more well known, on my page too)
The Getaway Plan (on my page, have myspace)
The Vaine(have myspace)
In Fiction(have myspace)
The Amity Affliction