Being relatively new to this site, I don't know if anyone had Sacrifice's The Ones I Condemn on their list for 2009, but it's a really great album and I never really see anyone talk about these guys. Some really solid thrash from a band that hadn't recorded an album since 1993. They're pretty much worshipped by metalheads here in the Toronto area and I'm hoping their popularity grows. You'd be doing yourself a disservice by not checking this album out as well as their old albums.
http://www.youtube.com/watch?v=FCYQmjkovrM
The riff at 1:22 is a great example of the stuff these guys do the best... simple riffs that will absolutely tear your neck apart.