Dennis, if your cards get full, find a Wal-Mart with a one-hour photo. They can dump your images to a CD onsite as long as you are under 700MB (size of the CD) and then you can erase your card and start over. Cheaper solution than buying a new card...or if you can find an electronics store, you could get a portable HD or portable stand alone CD burner, which is what I use. I only have 1.2GB of cards and that is how I survive on the road...