Apple's online store currently has a wide selection of refurbished Mac minis.  Starting at $429 is the 2.0GHz Mac mini (model no. MB463LL/A) which has been reduced from $599 to $429, a $170 price drop.  That makes this the lowest price we have seen on this Mac mini by around $160.  FREE shipping is included and sales tax applies for residents of most states.

Save $300 on the 2.0GHz Mac mini with 2GB of RAM and a 320GB hard drive, it was $799, now $499.  Also priced at $499 is the 2.26GHz Mac mini with 2GB of RAM and a 160GB hard drive.  For $100 more ($599) is the 2.26GHz Mac Mini with 2GB of RAM and a 320GB hard drive.  The highest priced Mac mini on the list still falls under $1000, the 2.53GHz Mac mini with Snow Leopard Server, 4GB of RAM and dual 500GB hard drives is only $849 after a $150 price drop. 

The Mac Mini features a 2.0GHz Intel Core 2 Duo processor with 1GB of RAM and a 120GB hard drive. Built-in features include AirPort Extreme wireless, Bluetooth, SuperDrive, speakers, four USB ports, and one FireWire port, with Mac OS X v 10.5 Leopard pre-installed. It is backed by Apples standard one year warranty on parts and labor. Dimensions: (H) 2" x (W) 6.5" x (D) 6.5" ; weight 2.9lbs.