I would like to start listening to hard rock and heavy metal?

Can you guys suggest any bands in the hard rock and heavy metal genre? I actually went to a Disturbed concert a couple weeks ago and loved the music and how the band performed and I've never listened to this type of music before. Other bands that I've started to listen to are Alice in Chains, Mudvayne, Korn, Alexisonfire, Apocolyptica, Avenged Sevenfold, Coal Chamber, Devil Driver, Drowning Pool, Egypt Central, Godsmack, A perfect circle, Tool. Thanks guys.