SweetFM (Free: Open-Sourced, v1.1.1) is a combination Last.Fm and iTunes controller. Aside from the standard controlling of Last.fm stations through media, it offers the interesting feature of saving songs from the stream directly to iTunes. Questionable legality aside, this is an excellent feature that is implemented well and sets it apart from the competition. SweetFM is a free app that I would recommend trying.
This work by Elliott Bradley is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 3.0 United States License