There's this great guitarist called Andy McKee. He's got his own sorta style of playing that is very unique to me.. at least I have never seen someone do what he can do with a guitar. Here's a couple of YouTube links to his songs: http://youtube.com/watch?v=Ddn4MGaS3N4
http://youtube.com/watch?v=nmE3QaGetn4

There's a bunch more of his on youtube as well. I guess it would be called homegrown acoustic or I suppose folk acoustic.. or may be something else.. not too good with putting things into genres.. In anycase, this is definitely worth a look at just to see what he can do..