Alvin and the Chipmunks Artwork

Hey, I'm fairly new here, but I thought I'd throw this out here. I collect Alvin and the Chipmunks animation art, and wanted to know if anybody has seen any for sale anywhere, has any they'd be willing to sell, or can give me any other advice on where to buy cels.

I buy most of mine off eBay but the vast majority of the Chipmunk cels that come up there are terrible, and figured I'd post something here to see if there's some other place to buy from that I'm missing.

That's about it... any help is greatly appreciated!

http://www.artstormgallery.com/ has a few backgrounds