Receive mail when specific user connects

Hi,
I want to receive a mail when a specific user connects.
How can this be done best? Raise an alert? How?
Btw, the 'Login auditing' is set to 'Failed logins only'.
Suggestions are very welcome!
Cheers,
Eu can scan master..sysprocesses table periodacally to check if that user has connected by matching sid with sid of syslogins table. a job can send u the mail, if not as soon as the user connects (depends on the frequency of the job) ... there might be a better option not sure...