I like to play in DADGAD as well as standard tuning; my classical guitar REALLY likes to be played in standard tuning but down 1 and a half steps.

This whole song is the classical (except for the drums), even the auto-wah part is on the classical.
http://rockstarnot.rekkerd.org/fawm2013/scott%20lake%20%20-%20detuned%20Edit%201%20Export%201.mp3

If you want to think about alternate tunings a little bit, I suggest looking into Jose Gonzales. His first album has about 4 or 5 different tunings and they really help create different moods in each song.

Another alternate tuning to play around with is the Open G tuning and Rolling Stones tunes. Brown Sugar, some play Jumpin Jack Flash this way, Start Me Up, etc.

Be careful, this can get addictive and you'll be sounding like Keef with all of your songs!