B&H has the new Apple Mac Pro 6-core model for $3499 (reg. $3999) in limited quantity. This model has the 3.5GHz Intel Xeon 6-core processor, 16GB RAM, 256GB PCIe flash drive and dual 3GB AMD FirePro D500 GPUs. Check it out while it lasts here at B&H Photo.
There are several other Apple and PC computers on great sales this weekend. Check them all out, along with a ton of other great deals over on the Black Friday and Cyber Monday Deals page.