Advice on security and storing banking details on PC

MoneySaverLog

Hi I'm after some advice on the best way to store bank codes and passwords securely.

Currently all my codes and passwords are different for all sites. Strong passwords are used upper lowercase, numeric and special characters if they allow also no dictionary words are used.

Currently I have set up a secured encrypted drive using BitDefender Total Security 2012, used as a firewall and AV too. It's auto updated whenever something new comes along.

Windows updates are run frequently.

I use Excel 2010 with a spreadsheet that is password protected. The computer is secured by password on Windows 7. The physical PC is heavy and would require some strength to carry it outside the house.

Am I overlooking anything here in terms of storing this data in a spreadsheet? Am I at risk by doing this? How secure are Excel 2010 Passwords?

Stompa

Personally, rather than Excel, I'd go with an application specifically designed for passwords, for example:

http://keepass.info/