Amazon.com has the Graige Wireless HDMI Transmitter and Receiver for $169.99 - 50% off w/coupon P24JRHM2 (Exp 8/10) = $84.99 + Free Shipping. (Sold by Graige, Fulfilled by Amazon)
Note: Prices on Amazon.com fluctuate regularly, and deals can expire anytime. Refer to the post time to see when it was listed.