Not to sway this in another direction but I was a huge 'Headbanger Ball' watcher back in high school. Used to stay up late on saturday and watch it almost every week. Some more that came to mind ...
Alice in Chains (1st album mostly)
My first concert was Scorpions here in Buffalo. Floor, 6th row, left center was my seat. They came with Trixter and Great White. Was an awesome concert.
I also remember watching cover bands whenever I had the chance. Used to see 'Battery' (Metallica cover band) every few months. They were very good. Also used to play an original set before they did the Metallica tunes. All in all very fun night for music.