I just would like some simple protection of my files, and from my point of view, there's nothing like unix permissions system. Chmoding and chowning folders and files just gives me the flexibility I'm seeking. I would like Finder was more friendly and instead of telling me "You don't have permissions" just asked me the credentials with proper access rights.
Do you know if there's a way of accomplishing this? I used this a lot on Gnome's Nautilus and I don't feel like opening a command-line for browsing my non system or coding related files.