Welcome here, are you planning to mine bitcoin or other altcoins with your PCes?
Most-likely altcoins, then trading them over for bitcoins as it's more profitable.
I'm currently mining dogecoin, but I'm not entirely sure if I'm going to stick with it for the long run. DogeCoin's looking like a fad that won't stick around. The other altcoin I'm looking into is WorldCoin. That looks pretty promising and is fairly new so I can stock up on at least a few before it gets too terrible to mine. I'm using GPU to mine. The main miner I have going at all times is a geforce 560 ti. The PC I'm currently using that I mine with while AFK is a geforce 660 ti.
