I haven´t bought anything, but i got very interesting music from the internet. I´m making a research of the beggining of heavy rock, and I´ve downloading a lot of albums from the 68 to-74 to analize the sounds. This albums are very powerful:
Budgie - Never turn your back on a friend (this album has a song called Breadfan, a song which metallica made a cover in the garage inc album)
Frank Zappa - Hot rats (a brilliant jam album full of amazing blues guitar with heavy sounds and excellent arrangment of drum, bass, strings, brass, etc)
Black Widow - Sacrifice (the first band that made a satanic rock show like a ritual. Their music is more thant excellent, is very very powerful and as complex as simple. They mix a lot of folk music with chill out rock).
I also have been listening to heavy psychedellic rock from this era (retro bands) with satanic themes and the results are extraordinary. Fucking brilliant bands:
The devil´s blood - The time of no time evermore (this is a combination of Iron Maiden early style, Steppenwolf Born to be wild rythms, psychedellic female voices like Jefferson Airplane and shocking blues mixed with may be Ian Gillan high notes, Lynyrd Skynyrd guitar solos style, with dark rock ambients like Dissection´s Reinkaos)
Blood Ceremony - Blood Ceremony (folk tunes with flute, heavy doom guitars like Black Sabbath´s Master of reality and female vocals)