Well usually 120Hz monitors/tvs are 3d, so try to get a 3d compatible hdmi cable, Amazon search for Mediabridge they make great hdmi cables for the cost with ethernet, 3d, all those things that usually dont matter
Pretty awesome setup. Not much I would change on it. Consider me jealous!
Has a good point lol would maybe go for a 240gb ssd, i have a 60 and it only has small programs and windows and only have 15gb left so matters on how many games u play if ur going to throw them on the ssd go big or go home lol