This leaked information on the X79 chipset should provide some insights into what to expect with a Sandy Bridge refresh of the Mac Pro either late this year or early next... Source: http://vr-zone.com/articles/intel-x79-roadmap-leaked/11762.html#ixzz1IICW6Bmh The number of SATA(3) ports is interesting, if not hard to believe. SAS support is also interesting although less relevant to enthusiasts these days in light of SSDs. However, these added ports could be the catalyst for a chassis redesign to accommodate more internal drives. If the RAID capabilities of this chipset are true, it will definitely put a damper on the aftermarket RAID card market place. Let's just hope that Apple supports using the chipset RAID features (something they haven't in the past). Notable omissions are Thunderbolt, USB3, and PCIe3. However, I'm sure the next Mac Pro will include Thunderbolt via an extra chip.