Today only, until 7 pm ET (or 100% claimed), Amazon offers the Belkin TuneBase FM Transmitter with ClearScan for iPod, model no. F8Z176, for $29.99 with free shipping. That's the lowest total price we could find by $17. It's compatible with all dockable iPod models and purports to scan and find the best FM frequency with the single push of a button.