Update: Also available from Amazon for $29.99 with free shipping for Prime members or anyone who spends $35 or more. Amazon Students (sign up) can save an additional $5 by entering promo code 7CGHXJ2C at checkout, bringing the total down to $24.99.
Best Buy has the current best offer on the Google Chromecast (only $29.99 with free shipping) or on its Ebay site which could mean a $20 for those who can use the Paypal $10 off $25 promo.
The Chromecast can wirelessly beam movies, music, web content and more from Android, iOS, Mac and PC devices to any HDTV via a WiFi connection. As of right now the Chromecast supports Google Play, YouTube, Netflix, and just recently added compatibility with Pandora and Hulu Plus.
With that $5 savings you might be interested in buying a 4GB SDHC memory card for only $2.99 also at Best Buy