B&H Photo-Video offers the Apple 2TB Time Capsule, model no. MD032LL/A, for $169 with free shipping. That's tied with our April mention as the lowest total price we've seen for a new one. (It's a current low of $30.) Time Capsule is an 802.11n WiFi base station with a built-in hard drive. It's geared towards Apple laptops for use with Time Machine.
Note that these aren't the latest versions, which are now called Apple Airport Time Capsule.