While this email is most likely not wide spread, folks should be cautious of spoofed messages from banks and software vendors.  Links in email messages can download hostile malware agents that can be difficult to recover from.

Microsoft Support has something very important to say
http://www.f-secure.com/weblog/archives/archive-052007.html#00001200

QUOTE: A few hours ago we received reports of an important update supposedly coming from Microsoft Support. Since this "update" is not part of the monthly cycle, we were of course suspicious.  Looking at the e-mail, our suspicions grew due to the glaring typos and the non-Microsoft domain link. 

The sample contained in the link is now detected as Backdoor:W32/VanBot.CA since 2007-05-28_05.  Updates are always good, but in this case, keep your virus definitions updated instead.