Armory
The Armory client offers more advanced features including the ability to run multiple wallets and paper backups of your Bitcoin keys. It also offers “cold storage”, which is the ability to store your bitcoins in a computer that is kept permanently offline and manually synced with your normal computer. Cold storage is a bit of a hassle, but it’s basically hacker-proof.The Armory client requires the Bitcoin-Qt client to already be installed and running.Armory essentially sits on top of Bitcoin-Qt and offers functionality that Bitcoin-Qt doesn’t have. After you’ve gotten started with Bitcoin and become familiar with the terminology, you should definitely check Amory out.
Available for Windows, Linux, and Mac at:
