Why need those vanity address. You are just creating another hole to your security. QT is enough and use a new clean install pc with only antivirus on it besides bitcoin and never use it other than storing your bitcoins.
How many people (average joe not tech mad) have a spare PC laying around doing nothing?!
Maybe a very old pc or laptop?
Don't let anyone create an address for you, they will have a copy of your private key! If you don't exclusively own the private key you don't own the coins!
Install Ubuntu OS, install Bitcoin-QT, encrypt your wallet with a password after making it, use that OS for nothing else but accessing your coins. (It'll even install on the same hard drive as windows if you don't have two PCs.) If you want to use an alt-coin wallet make another user account and keep them separated!
http://www.ubuntu.com/downloadhttps://bitcoin.org/en/download