Turn on the player and stay awhile. Theres some good tracks to be heard.
Dieselboy, Tech itch, Hybrid, Panacea, squarepusher, aphex twin, tiesto, Jason Dunne, Canc3r, Nool, Sevendust, Dilinger Escape Plan, anything techy or technical and percussive.
Buzz Tracker, Various samples recorded, have all sorts of percussion, Hammerhead, etc. etc.