As you may know from reading other posts here or from checking out my photo site, I use a Nikon D300 and a Nikon S550 camera. I have about 16GB of CF cards for my D300 and an 8GB SD card for my S550, but these are not enough for a week long vacation where I’m going to be taking quite a few pictures. For past trips, like the trip I took to Boise, ID for a week, I have taken my older laptop with me. And while on that trip I bought a 160GB USB hard drive as a second backup device. As you can imagine, a laptop is not a convenient device to carry on a trip.