Apple's stock of refurbished Mac Pro high-end desktop systems has dwindled to just one model, but its previous-generation 24-inch iMac has rejoined the list of reconditioned products. The lone high-end desktop available via Apple's online store is a Mac Pro Quad 3.0GHz Intel Xeon with two 3.0GHz Dual-Core Intel Xeon processors for $3,299. The refur
