Amazon offers the ASUS Transformer Pad 10.1" 32GB Android Tablet, model no. TF701T-B1-GR, for $279.99 with free shipping. That's $5 under our May mention and the lowest total price we've seen. (It's a current price low by $13.) Features include an NVIDIA Tegra 4 1.9GHz quad-core processor, 2GB RAM, 10.1" 2560x1600 IPS OGS touch screen LCD, 32GB internal storage, 5-megapixel rear camera, 1.2-megapixel front-facing camera, 802.11n wireless, Bluetooth 3.0, microSD card slot, micro HDMI, and Android 4.2 (Jelly Bean).
Of note, it's also available bundled with the ASUS Docking Station, model no. TF701T-B1-BUNDLE, for $349 with free shipping. That's the lowest total price we could find by $192.