We are looking to purchase a workhorse computer for a video editing/post environment. There has been a debate as to which computer best suits our needs. We work often with a RED workflow but need to be able to cut with the gamut of HD options and media. He has ordered the new iMac under the impression that this is the "fastest" solution for our needs at the moment. The thunderbolt allows for a greater throughput than most connections and the screen that comes along with it is pretty good. iMac 27" # 3.4GHz Quad-Core Intel Core i7 # 16GB 1333MHz DDR3 SDRAM - 4x4GB # 2TB Serial ATA Drive # AMD Radeon HD 6970M 2GB GDDR5 VS Refurbished Mac Pro 2.4GHz 8-Core Intel Xeon Originally released August 2010 Two 2.4GHz Quad-Core Intel Xeon "Westmere" processor 6GB (6 x 1GB) of 1066MHz DDR3 ECC memory 1TB Serial ATA 7200 rpm 18x SuperDrive (DVD±R DL/DVD±RW/CD-RW) ATI Radeon HD 5770 with 1GB GDDR5 memory I'd like to get a general consensus on the issue. I'm interested what you all have to say. Thanks!