If you want to see a lot of the techniques used in neo-classical shred, check out www.theodoreziras.com This guy is one of my favourite guitarists at the moment, there are loads of videos demonstrating a lot of the techniques used (sweep picking, arpeggios, tapping, alternate picking etc) which can help a lot. Also, check out Vinnie Moore (www.vinniemoore.com), possibly the best neo-classical player out there (not just overdriven shred! he plays spanish, classical and flamenco too) with a massive depth of musical knowledge and superior compositions that stay away from cloning Yngwie's style (unlike 90% of all other such players). Also check out www.jasonbecker.com, plently of runs tabbed out and a lot of downloads available (check out the tracks from Perpetual Burn). Jason Becker was heavily influenced by the likes of Paganini, Chopin, Lizst and Bach, worth checking out.