I like alot of modern rock and i want to learn how to make arpeggios (for sweep picking) so could someone explain it or give me a website that explains it in the simplest way possible.

But i also like alot of 80's and 90's rock like Metallica for example.... There solos are just plain blazing speed most of the time.... How do you work up that much ****ing speed and how do you make a solo like that????