If you're liking the tech then check out Narcosis and Executive Distraction Tasks. Very fast, very good. And in the vein of The Locust get yourself some Trencher. Trencher are amazing. Not technically grind but who cares, it's fast, harsh and they have songs called things like 'Will To Shit' so it fits in alright.
Also, everyone should listen to Acme. 'To Reduce The Choir To One Soloist' is one of the most overlooked and best metalcore albums of all time, along with Stalingrad's self-titled CD and Stand's 'True Romance' mini-album. Morser, AN, DA, TITD, Nasum, Spazz, Yacopsae and Pig Destroyer are all essential too, regardless of genre. They're fully mint, that's all anyone needs to know.