I love taking lots of pictures, too, when I'm travelling and I'm sure, so does everyone else. Usually, I don't bring any laptop either.
Since you'll be away for more than year, I guess it's really a good idea to have a portable hard drive with sd card slots so you can just easily transfer your photos. That way, you'll be able to travel lighter and not worry about the files you have in your laptop.
Good luck and have fun!