So, my boy is really into listening to guitar music, rock-style (doesn't like acoustic too much yet). So far, all I've really got is PG, Satch, Vai, and JP's solo disk.
Besides Marco Sfogli, of which I still need to pick up, what else is good these days? Ah, and no Animals as Leaders; that stuff bores him to tears, almost literally.
I really got out of listening to instrumental music; kinda bored me after awhile.
Andy James, Angel Vivaldi, Fred Brum, Marty Friedman (latest solo effort is awesome... and he is awesome. always has been. ).
Eric Johnson might be worth a try, and speaking of Marty... Cacophony/Jason Becker. And the G3 Stuff is great.