Watch the History and Players online guitar lesson by Joe Pinnavaia from Focus On: Fusion
Listening to great players of the genre that you would like to master is one of the most important parts of learning.
You can pick up phrasing ideas and note choices that will inspire you to become that fusion player that you want to be.
Here are a few greats to listen to:
Also check out these new players:
Do not listen to just guitar players and as Michael Brecker said - "Copy me and you become an imitator - listen to who influenced me and become my peer."
Check out sax players - how they phrase and how they solo is way different than how a guitarist may approach it. You will learn great things from other players who play instruments that are not your primary instrument. Keep your "Big Ears On!"