Any one know where I can buy Samuri Jack 
sketches... other than Cartoon Network???

OR 

Where I can buy American Cel art in general?  
I've been looking for places like Anime-Museum, 
but I'm not finding anyplace that's really 
reasonable...  Is American cel art really that 
expensive???

OH and....

Do Freakazoid cels exist?  lol... 

Sorry for the rant of ?'s, but I'm curious.  
Thanks.