I like the ORIGINAL BUILD in general.
1) Normally, I'd say 4GB was overkill but Watch Dogs appears to be VRAM hungry though I haven't tested it myself using a GTX770. You might want to spend a little more on a GTX780 though. If so, research carefully to noise or any other issues.
Several great ones. I really like the Z87/Z97 Gryphon (microATX) due to its exceptional quality and 5-Year Warranty.http://pcpartpicker.com/part/msi-video-card-n780tf3gd5oc
I wasn't getting a newer Haswell (Devil's Refresh) so got the Z87 version with NO added armor package for $155.