Cool man, glad you liked the songs! Here's some more stuff you might enjoy:

Fear Factory - "Self-Bias Resistor", "Edgecrusher", and "Resurrection."
Faith No More - "Caffeine", "The Gentle Art Of Making Enemies", and "Ashes to Ashes."
Anthrax - "Nothing", "Crush", and "Inside Out"

If you want some other bands, you might want to try these out:

GWAR - "Immortal Corrupter", "Happy Death-Day", and "Battle Lust."
Type O Negative - "My Girlfirend's Girlfriend", "Christian Woman", and "Creepy Green Light."
Corrosion of Conformity - "Clean My Wounds", "Over Me", and "Congratulations Song."
Moonspell - "Soulsick", "Angelizer", and "I Am The Eternal Spectator."

And lastly, if you're feeling adventurous:

Bile - "Legion", "Sex Reflex", and "TeknoWhore."

Hope that satisfies your curiosity for now! If you want more, just let me know. Horns up!