I have an old, 8-Core, 2007 Mac Pro which is starting to get very taxed by the heavy usage I put it through with my music software. It's also still running OS10.6.8. As you can imagine, I need to upgrade asap. There's a rumor that a new MAC PRO might be out by end of this year (2014) / early 2015 with the new Xeon processors, so I'm wondering if I should wait till then?... Also, some say that an 8-Core machine would be better than a 12-Core, because each processor is a higher speed (i.e. 3GHz vs 2.7). For heavy audio use (I used Digital Performer with many VIs, plugs, video etc), are 8 cores at a faster speed better than 12 Cores at a slower speed?... Any thoughts would be most appreciated! Gracias!