Hola, I am thinking of adding the 6,1 MP to my collection, or workflow rather. I have a 2009 MP flashed to 5,1 (quad core 3.46, 16 GB, HD 5870) and will be adding another computer to the house. I have always liked the design of the 6,1. I realize the potential issue with GPU etc. I wanted to ask the community your thoughts on this potential purchase. As well, if you have one of these MP 6,1 what has been your experience with the machine. My likely purchase is: A used (or refurbed) model 6,1 3.7 quad core base model D300 (OWC or Apple refurb are the areas I am looking to purchases at this time, eBay, I'm a bit iffy since some GPU are giving users issues). I do light to moderate video editing with effects (FCPX suite, Hitfilm), some audio and the basic home computing. I prefer to not go to the iMac line at this time (the extra ports on the 6,1 are one of the selling points for me, and the iMac Pro is well out of the budge at this time).