i just mount my camera and copy the photos to my home folder:
mount -t vfat /dev/sda1 /mnt/camera
cp /mnt/camera/* /home/example/photos
to view the photos i don't use anything fancy, mainly
kuickshow i guess, but it all depends on my mood...
here's a link with lots of image viewers for linux:
http://linux.tucows.com/image_viewers_default.html