I have been doing some research, and I believe that I have decided to go with a Matrix Infinity. Does anyone recommend a reliable website to purchase one from? I heard that there are clones that can cause problems. I have also noticed that there are two versions (regular and a 'homebrew version'). I haven't seen the homebrew one to purchase on any website, anyone know anything? If I get an authentic chip, is there any problems with upgrading software (v1.39 is recent)? I have seen some for sale with older firmware(v1.36), and I want to make sure that that wouldn't cause any problems.