Just wanted to add:
I have a kit with bamboo backgrounds and frames called Mabuhay! and Aimee Designs has Stock Photos of bamboo, etc both at kjoistudios.com
miraclesmommadesigns.blogspot.com has a bamboo paper pack freebie too...oh...woops, i see that she's already mentioned that.
hmmm...and i know I saw a bamboo background paper from either either little dreamer or sweet shoppe. i can't recall!