System Usage from Most to Least Important: Gaming, streaming, multitasking
Parts Not Required: Keyboard, mouse, speakers
Preferred Website(s) for Parts: Anything 100% credible. I've used newegg and amazon in the past.
Parts Preferences: For the case I'd prefer it to be all black with no special lights/windows on it. Plus easy enough to get in/out if needed. And I'd like the newest technology on the motherboard so that I could upgrade with some parts that might not have come out yet.
Overclocking: Probably not because I'm a newbler.
SLI or Crossfire: Doesn't matter
Monitor Resolution: Accomodate the highest game resolutions.
Additional Comments: Important that it doesn't idle really loud.
-> The usual advice; read the manual / install guide; look at the parts, read the manual again and if everything makes sense and looks right - then go ahead with the install.
While you're waiting for delivery you can download the online version of the motherboard manual and start getting familiar with it. Same for the other parts you want to order if they have install guides or manuals available.