http://www.macnn.com/articles/09/04/14/apple.refurbs.macbooks/
Apple refurbs: unibody MacBooks, iMacs, accessories
updated 05:25 pm EDT, Tue April 14, 2009
Apple refurbs: MacBooks
Apple's online store has a wide variety of refurbished Apple products at reduced prices. The MacBook Air SuperDrive is available for $79. Twenty-inch iMac models start at $849 for the 2.4GHz model with 1GB of memory and 250GB hard drive. MacBook Airs are available for as low as $999 for the 1.6GHz model with 2GB of memory and 80GB hard drive. The unibody MacBook with 2GHz processor, 2GB of memory and 250GB hard drive can be purchased for $1099. MacBook Pros start at $1699 for the 2.4GHz model with 2GB of RAM and 250GB hard drive and go up to $2799 for the 2.8GHz model with 4GB of memory and 128GB Solid State Drive.
