Here is my suggestion. Get yourself a protable harddrive. They are about the size of a small digital camera. You will need to go to a photo shop and have them set this up for you before you go to be sure that it works properly i.e. you are transferring the pictures. Then all you need to do is dump your photos when your card is full. Rather then explain further I'll just leave it at that and you should be able to get your answers from the photo store. Have a good trip.

Greg