Here, and if the link above my name doesn't work, 
then here's it in text:

www.vegalleries.com

Van Eaton galleries is probably one of my most 
favorite American cel sites (ah, but how I have 
neglected them as of late *guilty look*).  It's 
where I picked up one of my ultimate dream 
cels. :-)

The Roger Rabbit cels they have are expensive, 
but not too much, plus they come with 
photographic backgrounds.  ^)^  Hope you find 
something you want!

-Pitten