An unconfirmed report suggests that we may see a low-end/cheaper 5GB iPod introduced from Apple as early as the November 28th, 2003 In-Store Apple event.
It has already been revealed that the event will bring 10% discounts on current iPods and music-related purchases.
Steve Jobs has previously expressed interest in creating a cheaper iPod, but claimed "We just don't know how to do it right now.".