Ed cels are never under $200 unless they are 
really bad shots, so be prepared to fork over the 
cash. They avaerage around $400-500

Here are 2 sites that I know have Ed cels. 

http://www.originalanimearts.com

http://www.anime-museum.com

I suggest Original Anime Arts because they 
currently have 2 good, cheap, Ed cels, but if you 
have money, Anime-Museum has one of 
those 'perfect' cels of Ed for alot.