Not sure if they'd be classified as techno, but The Chemical Brothers were what I lived by for a awhile there... heres a few oldies:
Chem Bros - Bass Test
[nomedia="http://www.youtube.com/watch?v=llkW5uIvdDY"]YouTube - Broadcast Yourself.[/nomedia]
Chem Bros - In Dust We Trust
[nomedia="http://www.youtube.com/watch?v=b4DcBiQ8Hvw"]YouTube - Broadcast Yourself.[/nomedia]
Chem Bros - Galvanize
[nomedia="http://www.youtube.com/watch?v=APqm36XTqKE&feature=related"]YouTube - Broadcast Yourself.[/nomedia]
Theres others I like, and I guess not all of it would be considered techno, but these guys know how to put together some pretty sick beats.
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OH! One more group thats way-out-there is Mindless Self Indulgence. They're pretty fvcked up but some of their beats kick a$$. Not sure if you guys will like 'em but here's a couple:
MSI - Bomb This Track
[nomedia="http://www.youtube.com/watch?v=dY05Q8XnjoU&feature=related"]YouTube - Broadcast Yourself.[/nomedia]
MSI - Shut Me Up (Hilarious Music Video)
[nomedia="http://www.youtube.com/watch?v=qIYhbRiuVK0&feature=related"]YouTube - Broadcast Yourself.[/nomedia]
MSI - Straight To Video
[nomedia="http://www.youtube.com/watch?v=dM6elRs7F5k&feature=related"]YouTube - Broadcast Yourself.[/nomedia]
MSI - Stupid MF (This ones a bit rough)
[nomedia="http://www.youtube.com/watch?v=D-tdWBsum2c&feature=related"]YouTube - Broadcast Yourself.[/nomedia]
They're definitely a different group, but some of their stuff kicks a$$, especially at a party or rave.