Metal used to be my life in the 80's. Here's a spotify link to my favourite 70's album of the moment - Montrose by Montrose:
http://open.spotify.com/album/2amSBnQhrVdXM6QJK2KBSE
Best track - Space Station #5
Other faves:
Sabbath, Free, Metallica, Rainbow, Gary Moore (RIP), Dio (RIP) (note the Ronnie James Dio theme?!)