The Apple Store continues to offer a selection of factory-refurbished Apple Mac Pro workstations, as listed below. Plus, all systems receive free shipping. At up to $850 off, each system is tied with our mention from last week as the lowest total price we could find. Plus, all are lower than the best price we could find for a new unit, typically by wide margins. Sales tax is added where applicable. A 1-year warranty applies, the same as new systems. Items are removed from Apple's site when they sell out. The deals:

• Refurbished Apple MC560LL/A Mac Pro Quad-Core Xeon 2.8GHz Workstation for $1,819
• refurbished Apple MD770LL/A Mac Pro Quad-Core Xeon 3.2GHz Workstation for $2,139
• refurbished Apple MC561LL/A Mac Pro 8-Core Xeon 2.4GHz Workstation for $2,649
• refurbished Apple MD771LL/A Mac Pro 12-Core Xeon 2.4GHz Workstation for $3,239
• shop for more refurbished Apple Mac Pro Workstations at The Apple Store