I use the zoombrowser software. I know its not the greatest but ALL i use it for is to download. Everything else is in Photoshop. You can select "all" photos for download. It does take a while to download 100 photos though....but I never had a problem with it.
As for saving photos, well for aviation photos I don't. This is because the ones i process for upload here, I save the processed version as a .psd photoshop file if it's uploaded successfully. if its a reject and cannot be fixed, i decide if I want it for my "personal" collection and if so, i save it as a high-qual jpeg in a different folder. However, there were a couple "gems" that I saved from the camera. The rest get deleted. I may have shot 3 versions of the same plane or shot. Even if all 3 are good, i only upload one, and maybe I'll keep another depending on the shot, and everything else is delete.
Bruce Leibowitz - Jackson, MS (KJAN) - Canon 50D/100-400L IS lens