Artillery - Terror Squad: Fucking awesome. Technically proficient, while keeping the riffing flowing. The album's song writing is flawless and headbangingly great.
Coroner - Punishment in Decadence: Superb riffing with very technical riffs. This is solid thrash, and what I love is the way they can use technical riffs without being annoying and appearing to show off their guitar playing skills. I can't really describe the riffs because they are unique yet keep true to their genre.
Sepultura - Schizophrenia: Hell fucking yes! Raw, Dirty, Fast, Aggressive, and Evil. This is better than BtR, imo, because it has a sense of emotion and anger that is lost in BtR. The riffs are so fucking fast, dirty, and evil that I can't help but headbang.
Sodom - In the Sign of Evil: I thought I liked this before, but now I love it. The simplistic riffing reminds me of early black metal and punk, but they do this so god damned perfect that nobody could possibly do it again.
Vio-Lence - Eternal Nightmare: Fast, Aggressive, and awesome vocals. This is what I love about thrash. Tons of riffs that are just full of energy and agressiveness. Not to mention the fantastic vocals!
I'm going to look through the reco's again to check out my next bands, but I really need to listen to Sabbat (UK) - Dreamweaver since I love History of a Time to Come so much.