Check out Fireign (www.fireign.com). Amazing old school thrash metal. Imagine old school Slayer, Testament mixed with Witchery mixed with Walls Of Jericho era Helloween.
and the link in my sig is a unique death metal band from atlanta with an electronica influence. They make new kovenant look like a joke in regard to mixing the two styles. Just download filter, and you'll see what I mean.
Ok then, like everyone else I'll recommend my own band: CHTON! We've got two pro-recorded tracks of dark and brutal Death Metal waiting for you at our site http://www.chton.com
..there you can also find our brand new video for the track "Book of Black Earth" and a bunch of remixes of the said tracks. Up the horns!