alienx's worldguard only covers the breaking of IC2 machines. theres another patch for EE weapons and tools:
http://forums.technicpack.net/threads/patch-for-ee-mining-tools-no-more-griefing-with-them.6642/
I was thinking, CCSensors would be a good implementation because it can monitor things like IC2 machines and BC machines and display/use data in CC. Im not going to beg and be annoying, but please add it Technic team!