I can't tell you anything about music. At least not where to get some.
For downloadable skins you can try PlanetVampire http://planet-vampire.com/modules/files/.
And there is a french site I know about: http://www.vampire-network.net/modules.php?name=Downloads&d_op=viewdownload&cid=16. It's mostly the same stuff, but the french do have some skins that PV does not.
Tuesday is Soylent Green day.