Yes. The only file you need to worry about is (location dependent on operating system). If you copy that one file to another computer (or to a secure backup), you will have access to your money and address book.
Conversely, that is the only file you need to protect -- all of the other files should be safe to share without worrying about anyone getting their hands on your money.
This only applies to your money and address book.
If you only copy , you will need to re-download the entire block chain on the other computer (so you may want to copy the other files too, but it is not necessary). There is no point in backing up the other files, because if you need to, you can redownload everything else.
Finally, you should not leave your cleartext wallet in any server that you don't control (such as DropBox).
Make sure you encrypt it before backing it up.
answered Sep 3 '11 at 5:30
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