Dell via eBay offers the Alienware OptX AW2310 23" 120Hz 1080p 3D-Ready Widescreen LCD HD Monitor, model no. Y3MN7, for $379.99. Coupon code "CEBAYDELL15" cuts it to $322.99. With free shipping, that's $77 under our April mention and the lowest total price we've seen. Sales tax is added where applicable. This monitor features a 1920x1080 (1080p) native resolution, 120Hz refresh rate, 80,000:1 dynamic contrast ratio, 3ms response time, touch-sensitve input for display adjustments, tilt, swivel, and height-adjustable stand, four USB 2.0 ports, one HDMI input, and DVI input.

Note: For 3D, you'll need a compatible NVIDIA video card and the NVIDIA 3D Vision Kit (not included).