Delayed AutoResponder - Email AutoReply Message

I need a script built (or desktop solution) that will check a email POP account every 1 hour on the hour from the hours of 8AM-5PM M-F. If the system detects a new email, then it will send a predesigned autoreply to the senders email address. The application is that people send resumes into our company, which generally we invite all people to come in for any interview. However, I need them to "think" that the resume was actually looked at. Therefore, I want the auto message to go out 1 x per hour. I am not expecting to pay much for this script, so please no high bidders. It's an easy job.