Your needs would be well satisfied with your selection of rig..but you can consider switching from i7 4770 to i7 4790k.. Coz the latter is a 4.0 ghz processor carrying more or less the same price tag.. And the latter is new..
With those components you will have no problems getting 60FPS+ on 1080p. But just a few recommendations.
1. You did not specify the PSU's model. But see if you can get the EVGA Supernova G2 850W unit. At this moment, this is one of the best PSUs you can get in terms of high quality with a low price mark. You should be able to find it for $130 USD or so.
2. If you're going for RAM, grab a 2 x 8GB kit as it puts less stress on your CPU's IMC while also giving you the headroom for future upgrades. 1600MHz is the minimum nowadays. Get something that's like CAS 9. If you want the best bang for your buck, have a look at the G.Skill brand.