Apple's online store is currently offering the refurbished 500GB Time Capsule (model no. MB276LL/A) for $249, which is a price cut of $50 off the original price of $299 and the lowest price we have seen on this network storage device by about $23.  FREE shipping is included and sales tax applies for residents of most states.

The 1TB model is also available for $399 with FREE shipping.

The Time Capsule offers 500GB of storage space that works automatically with Time Machine in Mac OS X Leopard to create a no-hassle backup solution.  Wireless connectivity makes it possible to back up all the computers in your home to a central location.  It is compatible with both Mac (OS X 10.4 or later) and Windows (XP and Vista) based systems with an available USB port or wireless connectivity.  It is backed by Apple's standard one year warranty on parts and labor.  Dimensions: (H) 1.4" x (W) 7.7" x (D) 7.7" ; weight 3.5lbs.