Best Buy offers the Sennheiser HD 558 Headphones in Titan for $74.98 with free shipping. That's the lowest price we could find by $20, although we saw them for $5 less in March. These open circumaural headphones feature a 15Hz to 28kHz frequency response, gold-plated 1/4" jack, and internal sound reflector.
Newegg offers the Logitech G430 Gaming Headset for $34.99 with free shipping. (Amazon and Best Buy charge the same). That's tied with our mention from last November and the lowest price we could find by $5. It features Dolby 7.1 surround sound, 20Hz to 20KHz frequency response, noise-cancelling mic, and on-cable sound controls.