Hey there, I decided to try mining myself because I found it interesting. Mining wasn't profitable roughly a year ago, but today in January 2018, there is some good returns to be made. Here is my layout of how I am making some fun learning money. I will answer your question after my little explanation. I consider my build an investment and I live alone bearing all expenses myself on near minimum wage. With some money I saved up over several months I have purchased the following;
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An SSD is a wise choice as while tuning you will have plenty of restarts and booting in 7 seconds instead of 27 seconds will save lots of headache. You will not need to purchase Win10 to run your mining rigs, you can run Windows 10 for free by not activating it. I considered getting Windows 10 Pro for the remote connection feature, but I found the Chrome Remote Desktop application to be much easier to use as there is a phone app that is very responsive and I can check on all my computers while at work or on the go.
I have sloppy writing, but I hope I was able to help you.