Update:
I only plan to use one graphics card.
I started putting together some components on PCPartsPicker
https://pcpartpicker.com/list/Q6DfWD
For items like the CPU cooler, thermal compound, power supply and fans I
just put in anything for now. I'm not sure what is best and I'm sure finalizing the case
would help determine this.
Choosing the right case is my main dilema. I don't want something too big for fragile.
I think the motherboard, processor and video card are pretty much decided
but I'm open to suggestions.
I already have hard drives, a monitor, mouse and keyboard I can use.