I have worked with the ScanSnap with pictures this week. Unfortunately I haven't had enough time in the last week to put it through all its paces but I am impressed so far. I put some snapshots of scenery through it first just in case. This also gave me a chance to play with the settings, see how everything worked. They did well. I progressed, eventually getting to a 1920s photo in good shape. I was quite pleased. I don't believe I would put the original 1862 wedding picture of my great great grandparents through it but since I have "new" copy of that I have no problem. I should point out that most of my old photos are in pretty good shape. If a photo was fragile or delicate in any way I would not put it through a sheet feed scanner.
This week I also took the binding off a paper bound genealogy book and fed it through. The hardest part was cutting off the binding, both mentally and physically. I had a hard time tearing up a book. It wasn't that easy to remove the pages either. You need to remove all the glue bits, jagged edges, etc. I called someone who has done before and he recommended a high tech device -- use my band saw. I also note that heavier paper, such as the cover of many paper bound books, does not feed well or in some cases not at all.
Where did I get the ScanSnap? It's available in a lot of places. Amazon.com is a good place to start for many things. I suggest you search for it online and see what the going price is when you are thinking of buying. These things vary from week to week. For example, when I first began considering the ScanSnap there was only the 300 in the color duplexing portable department. Now there is the 1300 which is a bit better and a bit cheaper. And there are other models.