There's this one...

"[Barclays] Dear Valued Customer,

- Our new security system will help you to avoid
frequently fraud transactions and to keep your
investments in safety.
- Due to technical update we recommend you to
reactivate your account.
Click on the link below to login and begin using
your updated Barclays account.
To log into your account, please visit the NetBank
website at http://www.barclays.co.uk
If you have questions about your online statement,
please send us a Bank Mail or call us at
0846 600 2323 (outside the UK dial +44 247 686 2063).
We appreciate your business. It's truly our
pleasure to serve you.
Barclays Customer Care
This email is for notification only. To contact us,
please log into your account and send a Bank Mail."

Or what about this one? (obviously not english...)

"Hello dear client Barclays Bank.
Today our system of safety at night has been cracked!!!
It not a joke!!! It is the truth!!!
We ask you, in order to prevent problems, to repeat
registration of your data. Make it very quickly!
Administration Barclays Bank."

(Oh dear...0/10 for effort)

[Natwest]

Dear Valued Customer,

- Our new security system will help you to avoid
frequently fraud transactions and to keep your
investments in safety.
- Due to technical update we recommend you to
reactivate your account.
Click on the link below to login and begin using
your updated NatWest account.
To log into your account, please visit the NatWest Online Banking
https://www.nwolb.com/ [this actually links to IP address http://64.174.108.131/ (don't click)]
If you have questions about your online statement,
please send us a Bank Mail or call us at
0846 600 2323 (outside the UK dial +44 247 686 2063).
We appreciate your business. It's truly our
pleasure to serve you.
Natwest Customer Care
This email is for notification only. To contact us,
please log into your account and send a Bank Mail.

OR [Barclays] Dear Sir/Madam,

Barclays Bank PLC. always look forward for the high security of our clients. Some customers have been receiving an email claiming to be from Barclays advising them to follow a link to what appear to be a Barclays web site, where they are prompted to enter their personal Online Banking details. Barclays is in no way involved with this email and the web site does not belong to us.

Barclays is proud to announce about their new updated secure system. We updated our new SSL servers to give our customers a better, fast and secure online banking service.

Due to the recent update of the servers, you are requested to please update your account info at the following link.

*Important*
We have asked few additional information which is going to be the part of secure login process. These additional information will be asked during your future login security so, please provide all these info completely and correctly otherwise due to security reasons we may have to close your account temporarily.

J. S. Smith
Security Advisor
Barclays Bank PLC.
(Mr Smith didn't do very well at english judging by his grammmur)