Well My first influences were rock and metal bands such as Pantera, Metallica, Rage against the machine, Deftones, Nirvana...
But then I really got into music so I started to appreciate Blues, Country, Folk (especially Irish), Jazz(especially Bosanova)
So now my influences are also Janis Joplin, Jimi Hendrix, Johnny Cash, Ray Charles, Simon and Gurfunkle, Gabriele Hintermann (You don't know him, but he'll become famous soon - look for him on myspace.com)
BB king, Bob dylan, The Dubliners, Bob Geldolf, Modena City Ramblers, Litfiba, Errichetta Underground (Search for them on myspace.com), Les Claypol, Victor Wooten, Muse (I dont really like their songs but they really know how to use effects and Synths).
I think thats it, if I forgot some I will write it down later on!