Buy.com has the Harman AVR154 A/V Receiver for $195 - $5 off $100 Buy.com Coupon (Click Here to activate, new customer only) = $190.00. Shipping is free.
TigerDirect has the Samsung HTC5500 Blu-ray Home Theater Surround Sound System - 5.1 channel, 1000 Watts, BD Live, Internet TV, Docking Cradle for $399.99 - $100 off Tiger Direct CouponDYB4849 = $299.99 + free shipping.
Today only, Cowboom has the Sony DAV-HDX265 Home Theater System with 5-disc DVD Changer 1080i Upscaling and 5.1 Speaker System for $99.99. Shipping is $5.
Sony Style has the Sony STRDH800 Home Theater A/V Receiver for $399.99 - 40% off Sony CouponSONYSTRDH800SAVE [Exp. 07/03 or after 100 uses] = $229.99 with free shipping.