Music Here are some of the Satanic bands, musicians and music that Vexen is most likely to mention as inspiration,
The Electric Hellfire Club A fun, electronic band that do a range of styles from industrial dance to up-beat, subverse alternative pop. The fun, style and lyrics are inspirational.... these crazy "unholy rollers" are headed by Rev. Thomas Thorn of the Church of Satan.
Black Metal Black Metal in general for being utterly awesome, and having an intriguing history. Read Lords of Chaos (the bloody rise of the Satanic underground) by Michael Moynihan and Didrik Soderlind for a history of Black Metal.
Reading material Fun, philosophical, inspiring, fiction and non-fiction books:
"Dictionary of Demons" and demonologists by Fred Gettings
A nicely comprehensive and multiple-source book, with much historical information and linguistics information. An encyclopedia.