Long Distance Calling - I Know You, Stanley Milgram!
There were some great suggestions in the discussion about post rock we had recently, but I think I'll still stick to LDC as my favorite of them all.
Slaughter of the Bluegrass - Punish My Heaven
I don't know why but DT in bluegrass form is just a masterpiece
Tourniquet - Gelatinous Tubercles of Purulent Ossification
I just rediscovered my love for this band
Tourniquet is a thrash/tech band, I personally think they are up there with the big 4 of thrash if not better. All their lyrics pretty much deal with medical terms so you will learn stuff from that band that is very interesting. This band is also christian but don't let that discourage you, this band has an immense amount of talent and are very enjoyable.
Katatonia - Follower
God I love this band, one of the first to get me into metal actually.
Buuuuuuuuuuuuuuuuuh
System of a Down - This Cocaine Makes Me Feel Like I'm On This Song