[stuxnet79]

Just started using org mode recently. It is fantastic. I still haven't figured out how to date TODOs and organize them around different org files. The org file fragment you've provided is interesting and has given me some ideas. I've also gotten into the habit of encrypting my org files - it is somewhat annoying having to type in the password every time you launch or save but it's worth it for the peace of mind.

[qwertyuiop924]

You can look at this: http://orgmode.org/worg/org-tutorials/orgtutorial_dto.html

That should help you with some of the stuff you just mentioned.