This may sound paranoid, but many break-ins nearby got me thinking about whether I should take steps to make my mac secure. Maybe you can afford $1000 for a new computer for two years, but I can't. I've had this one for eight.

1) Do you think I should log in/log out of my account when I startup my Mac and shut it down? I find it annoying, and since I'm the only user.

2) I've read about cables that attach to the mac, locking it to a table or something. What do you think about this?

I know laptops get stolen, but I would think my desktop is safe.

I appreciate your responses.