A few years ago, Andy Summers of the Police teamed up with classical guitarist Ben Verdery. The result of this collaboration is the 2007 album First You Build A Cloud. The combination of an electric guitar with a classical guitar, especially with two amazing players, is beautiful. This album is mostly comprised of ambient-sounding music, but the music is inspiring. I'm actually working on a piece right now for effected electric guitar (flange, phaser, delay pedal, etc) and classical guitar, which I hope to have on my senior recital.
So, go give First You Build A Cloud a listen.