Question : Quick Help with MSSQL Select comparing dates

I have a table named "users" with these fields:
username
password
expirationdate
hostnames

In my stored procedure I need to verify that the current date is not past the expiration date.  If it is, then it should return "expired"
What chunk of code could I use?  I'm not sure how to compare dates.

Answer : Quick Help with MSSQL Select comparing dates

IF EXISTS( SELECT null  
                  from Users
                  where username = @username
                  and expiration < getdate()
       )
BEGIN                        
  SET@responsestring = 'Expired'
  RETURN
END