Wow, a topic near and dear to my heart. Rock&Roll Ninja, the Sufjan will serve you well.
Just as a way to get it out there, if you're interested in indie, there's a great site that is probably the preeminent indie web page. It usually does 5 album reviews per day, everday. And at the end of the year, they put up their top 50. The top 50 was just released yesterday. Every now and again, a mainstream label will get some ink over there if it's from a solid artist who just happens to be on a big label (Radiohead; Kanye West), but most of it is stuff you really don't hear about unless you really keep your ear to the ground. Since finding it about 3 years ago, my CD collection has been completely overhauled/transformed and i've bought way more music than I should have (i'm talking absurd levels of spendage). The site is called Pitchfork. They do a lot of indie rock, but i've also discovered a lot of indie groups that fall in all kinds of genres and sub-genres. Their top 50 of the year is a great start for the newly aquainted...it's like flipping through a phone book...just let your finger land on any given album and chances are, it's gonna be pretty solid:
http://www.pitchforkmedia.com
Some of my fav's right now (too many to list all):
Clap Your Hands Say Yeah, Wolf Parade, Menomena, Four Tet, Animal Collective, Sufjan Stevens, Architecture in Helsinki, Boards of Canada, Grizzly Bear, The Books, The National, Rogue Wave. Okay, that's enough. Happy hunting.