Amazon offers the Bose Acoustimass 6 Series 5.1-Channel Speaker System, model no. 29275, for $369 with free shipping. (Sam's Club charges the same for its members.) That's tied with our mention from two weeks ago as the lowest total price we've seen. (It's a current price low by $330.) This system includes an Acoustimass module with 5" woofer and five cube speakers.
Adorama offers the Bose SoundSport In-Ear Headphones in Green for $99.95 with free shipping. That's the lowest total price we could find by $35. They are sweat- and water-resistant and feature in-line controls and mic.