The only tip I have to give to you is enhance the skills you have first, rather than learning new ones. Pay attention to how they chain together with other classes. If you don't do that, you'll end up with boss fights you can't win without great luck.
Pioneer VSX-1018AH-K, PDP-5020FD, DV-79AVi
Axiom M22s, VP150, QS8s
Sony PS3, surround backs