Personally, I just bought I'm With You on iTunes. I had gotten a couple of song off the album a while back, but I yesterday I finally got the rest of it (I had to wait for the funds to come in and all that). And man, that album is damn good. Seriously. Listen to it; it's amazing. It's classic RHCP at times, awesomely feel-good, and intense. My favorite track is number 11-Police Station. I really don't know how to describe it other than feel-good and sad at the same time. Mellow. Listen to it. All of it. Now.
You're still here? Go on! Listen to I'm With You.