I would love some suggestions on great acoustic...

Danny Heines, William Ackerman.

seu jorge doing david bowie covers in portuguese, found on the soundtrack of "the life aquatic". all acoustic, all bowie covers. awesome

Granny- try Kaki King for a very different type of acoustic guitar. Definitely not flowing but quite intriguing I think.

Colin Meloy "Sings Live!" (The Decemberists). This is one fantastic sounding lp! I fear it went under the radar, so here you go. (If it's still available). As I recall, I ordered mine direct from Jealous Butcher Records at a great price.

Jack Johnson? I got a cdr so I don't know which album it is but I really like it. If you are in that Van the Man camp I think you might like Jack Johnson.