But watch out for a real one that has caused some big problems:
"TROJ_NAKEDWIFE is a new Trojan that has been hitting the headlines. Upon execution, this Trojan deletes all DLL, INI, EXE, BMP, and COM files in the Windows and system directories. It propagates via MS Outlook, by sending out an email to every email address listed in the infected user's address book. A sample of this email is as follows:
Subject: FW: Naked Wife
Message Body: My wife never look like that
Best Regards,
<Sender>
Attachment: NakedWife.exe"
Out of interest, the Kournikova virus nearly got me a couple of weeks ago - luckily it got caught by Zone Alarm. The Norton virus definition for it didn't arrive until several days later.