I'm about to upgrade my five year old Mac Pro Quad core 3.0 that I use for video production editing. Its been a solid machine but I'm finding I'm getting bogged down in rendering graphics and compressing Mpeg 4s. Currently I've got two options, a 2.4 12 core (August 2012) or a 2.93 8 core (2009 vintage). The price difference is about $500. Do you think the newer 12 core is the better choice? I'm assuming I'll also get all the needed RAM and a new Samsung SSD 840 pro to jolt my productivity.