How to schedule jobs in Sql server 2008 for less than 10 sec? I want to run a job every 3 seconds, however in SQL Server 2008 we cannot define an interval of less than 10 seconds.

The job is used to insert/update visitor information, and segmentation information into a database which is tracked by google search. 

There are up to about 100 rows inserted in a 2 or 3 seconds. That job inserts and update the table in a database. Is there any way to schedule it using sp job scheduling configuration?
Create a job that is scheduled to start every minute.  Have the job do something like:

WHILE 1=1
BEGIN
    EXEC dbo.SomeProcedure; /*  this would be the 
        name of a stored procedure that does the 
        actual work */
    WAITFOR DELAY '00:00:03.000';
END