you can lock a folder and make it so that you can only add files but cant open it. to do this go into get info on the folder then at the bottom lock it put in your system password. to unlock it do the same. the folder becomes a drop box, you can add files to it by dragging it in but you cant open it unless you unlock it. someone correct me if i'm wrong on the exact process since i'm at work and not in front of my mac right now.
thanks, found it.
but you don't have to insert your password to unlock the folder, which is quite unlogical.
unless i'm overseeing something ...?
That's what I do; works great for me. Then you're not tied to just one folder either. Be sure to make it large enough though; that's where I messed up the first time.i don't know of any apps that work well, but they are out there if you really want them.
could just create a sparse disk image with encryption. just have to be sure to eject it when you're done.