Oh, Silversun Pickups. Simply wonderful. <3 I was just a casual fan for a while, but when I saw them live they became one of my favorites.
As I count myself amongst the indie coffee-shop breed of white kids, I am obligated to be obsessive over the Smiths, the Shins, Cold War Kids, Arcade Fire and White Rabbits as well, so needless to say I'm ecstatic to see you type that. But it also seems that you have every band I would normally recommend covered. I'm sure you've at least heard of the Flaming Lips, but I would definately recommend them nevertheless, and one particular song by them entitled Worm Mountain comes to mind. I used to listen to it obsessively when I began my apparently lifelong addiction to the aforementioned bands. There are various other indie groups that come to mind, but that would constitute for an ever larger paragraph and so it will remain unsaid.
Of the books you mentioned, I like all of them, but Catcher in the Rye and the Great Gatsby especially shine. Whenever I discuss books I'll almost always recommend Brave New World by Aldous Huxley and Fahrenheit 451 by Ray Bradbury simply because they're wonderful classics, and I'll usually mention my personal favorite book which is House of Leaves by Mark Z. Danielewski. I often reference it due to its sheer amazingness. It's an experimental novel which really is unlike most anything I've seen before.
If you love those sorts of movies (surprise surprise I do too) you'll probably like I Heart Huckabees, Eternal Sunshine of the Spotless Mind, etc. It's likely you've seen those, but c'est la vie I shall contribute nevertheless. (500) Days of Summer is basically my dvd version of a bible, by the way.