I'm afraid there wont be too much cels at that 
convention. I was at the Kamyahouse shop in 
Paris 2 weks ago, they have very little cels and 
are in very bad condition, stored in a box with 
no other protection like a celbag.
Atomic-club from Paris will be there too 
probably, but they have nothing new cel wise, 
everything can be seen on their site.
I'm not leaving Amsterdam, I've seen this 
convention enough times.

Cheers,

DM.