You can still go even cheaper, like I was saying, you're way overspending for an unestablished youtube channel.
Here's a complete package:
You don't need a 6-12 core i7. 16GBs of ram should be all you need for now, you can get another 16 for 32 total if you feel you still need more later. You can install a few games to the SSD, and save videos to the HDD. If you want to keep a backlog of videos, you want to build/buy a Network Attached Storage device. (it's basically just a computer with only hard drives) Start out with 1 980 for now, if you think you need another you can get another for SLI, but don't jump the gun. The PSU is enough for 2 of them. Windows 8 just runs better than 7, and you can install www.classicshell.net and it will...