Plain and simple: those of you who listen to Metal, list what I ought to listen to.

Bands I enjoy that are affiliated with Metal are:
Opeth
Tool
Children of Bodom
Cradle of Filth
Mastodon
In Flames
Lamb of God
Otep
Candlemass
Black Sabbath
Hatebreed
Slayer
Pantera
Trivium
Metalium

And Tool if you want to include them in the mix


So basically, I am wondering if I am missing out on a some metal bands that are considered wonderful. I adore Children of Bodom and Opeth more than anything else in terms of metal, followed closely by Candlemass.

So any suggestions?