Here's just a glance at the world of Danny Amis aka Daddy-O Grande. He's best known for his role in Los Straitjackets (a fantastic instrumental band btw), but he's been playing with a lot of other bands as well. Lost Acapulco are one outfit that comes to mind (their collaboration CD with Daddy-O Grande is highly recommended).
If you can't do without vocals, then you're certainly on the wrong boat, but if you find good instrumental music exciting, then check out everything that has to do with Danny Amis aka Daddy-O Grande. Here's his website: http://www.daddyogrande.com/