Hey, I'm a guy and own some DBZ cels! 

Ok, now on to storing/displaying cels.  If you 
want to store your cels safely, I suggest each be 
in acid free plastic sheets and stored in a 
book.  I think the plastic sheets should have a 
hole or small opening so that the cel is 
breathable (why, I have no idea).  You should 
keep the book/cels away from direct sunlight for 
extended periods of time as the sun wears the 
paints away.  Keeping the cels in dark storage is 
the cheapest way to safely store your cels.

If you want to safely frame your cels it's going 
to be a bit more costly.  When I buy frames for 
my cels, I get sun resistant glass, acid free 
matting, and have the cel propped up from the 
back of the frame (so the paint does not stick).  
I believe standard sized cels (9 X 10 1/2)cost me 
around $35-$40 and larger cels of course cost 
more. Backgrounds may vary the price as well.  I 
suggest, if possible, you frame them or watch a 
professional framer frame them.  DON'T let anyone 
trim your cels/backgrounds (unless you want them 
to), or tape them since warps the cel.  Also, if 
any paper clips are in the cel they should be 
taken out as well.

Also, I've found that I save money when I have 
multiple cels in a single fame.  If you decide to 
do that, make sure you like it b/c that's the way 
it's gonna be!

Also, never put your frame in direct sun light 
(It's sun resistant glass, not sun proof), keep 
them away from hot places, and keep them away 
from damp places (such as the shower as moisture 
might seep into the frame and ruin your cels).

I hope this has been infromative and helpfull^_^
    John