Hi Macrumors! This is my first post and I'm excited to join you guys. I'm looking at a 4,1 Mac Pro with a 2.66 quad core processor. Below is the specs. http://www.everymac.com/systems/app...-quad-core-2.66-early-2009-nehalem-specs.html I'm buying this for 450$ Can you guys tell me if this is a good deal or not? What kinds of things should I be looking for when examining the machine before purchase? And finally, if I want to upgrade the GPU, what is a decent Mid-range GPU that I can use in this machine? Also one more thing, can anyone comment on how fast this machine will be compared to a mid-2012 macbook pro non-retina 2.3 ghz i7 processor with daily tasks such as vlc and web browsing?