When i build a pc i normally do a list of all the components i need. Then fill in the blanks of what components i have got in mind, then tweak the list looking for reviews of products, opinions etc.

Might be better going with one screen with a higher res, rather than 2 but depends how you like your screen layout.

New build pc list:

Cpu:
Ram:
Motherboard:
Case:
Optical Drive:
Hdd:
Graphics:
Soundcard:
Screen/s

Have you got any components in mind so far?

Tell me to stop if i'm going into to much detail lol!