If you're talking instruments, I use acoustic 6 and 12 string guitars, mandolin, acoustic and electric (Fender Rhodes) piano, electric guitars and bass (sometimes acoustic bass), synths of various kinds, drums, pretty standard pop/rock setup.
If you're talking type of music, I'm inspired by everything from classical like Beethoven, Bach, Mozart, Chopin and Gustav Holst to some early Metallica sounding stuff, jazzy electronica and trance, jazz and blues Frank Zappa style, progressive rock Genesis/Rush style, psychedelia early Pink Floyd style..... I finished my new studio not long ago (and finally, it seems, started recording with the right people) so the sound hasn't quite matured yet. But so far, to my ears, it sounds like a jazzy "Pink Zeppelin Doors" thing, don't know how else to put it....