I'm going to be printing some wedding pictures for a couple of friends.  Some of the unframed enlargements will be mailed back to their parents in China so I was wondering whether anybody knows what sizes of prints would be most useful given the types of ready-made frames that are available there.  I'll be printing 8 1/2 x 11 for the friends since they live here in the States and can easily get frames to fit the paper.  I was thinking 8 x 10 for them to send home since it has been a standard enlargement size worldwide for a long time.  Any suggestions?

Thanks