Check out Speed Kills by Michael Angelo Battio, it's the instructional dvd for the track No Boundaries and contains just about every technique needed to be an amazing guitarist. If you havent heard it already, download No Boundaries Mp3 from ww.angelo.com

Also, check out www.chopsfromhell.com
Guys that you should consider from that site are Rusty Cooley (for speed and complex runs) and Theodore Ziras (for the best sounding arpeggios sequences anywhere).