securing your files

so now that you've backed up all your files, how do you make sure that all your digital info is safe?

My phone doesn't really contain any sensitive information, so that's ok.

My pda is password protected. I wonder how safe that means it is. I bet it's easy to hack :P

My computer is password protected. How safe does that make my computer? I'd imagine it means nothing in terms of keeping my files protected. Anyone could probably rip out the hard disks and access the files from another computer.

My backup files are for the most part not encrypted either.

Bah. More stuff to do :D