newegg via eBay offers the Polk Audio I-Sonic Audio System with iPod / iPhone Dock, model no. AM3395-A, for $99.99 with free shipping. That's $20 under our March mention and the lowest total price we've seen for this dock. (It's also a current price low by $70.) It features an iPod and iPhone dock, 4-speaker array, AM/FM radio, compact on-board amplifier, and more. Deal ends March 21.