Newegg offers the Harman Kardon 5.1-Channel 3D Blu-ray Home Theater, model no. BDS 7772-120-A1, for $349.95. Apply coupon code "VISACHECKOUT" and pay via Visa Checkout to drop it to $329.95. With free shipping, that's $20 under last month's mention and the lowest total price we could find by $89. It features four satellite speakers, a center-channel speaker, powered subwoofer, 3D Blu-ray Disc player, Bluetooth, Apple AirPlay, three HDMI inputs, and USB.
Of note, this coupon can only be used once per account.