Worse yet, there are plenty of script kiddies and scammers that are going to be trying to get you to download and install it.
Don't install anything linked to on this forum, unless it's been found to be legit by someone with a good reputation. Assume everything is an attempt to steal your wallet.
You should also encrypt your wallet when not in use. In Bitcoin-Qt, click Settings in the menu bar and then click "Encrypt Wallet". Make sure to use a strong passphrase, but don't forget it! If you forget the passphrase, you will lose all your BTC. Other encryption methods exist, but are more complicated.
You have been warned. Be safe!
Nefario
I also backup my wallet in a TrueCrypt container on dropbox. Should my pc breakdown I still have the wallet in dropbox in a secure way. My passwords range from 23 to 50 characters so I know it's quite secure.