Since this is a gaming PC, I Would drop the 16Gb of ram and go for 8, Get a 4690K Instead of a 4790K (Nearly no difference in gameplay), And get a Z97 Motherboard, Something like a MSI Z97-G45 Gaming.
Hi Kamil Kurek
swap the lite-on DVD for an asus / samsung , lite on make some pretty crappy drives
swap the ssd for a samsung evo 840 250gb and a z97 board and i will give you 10/10
Since this is a gaming PC, I Would drop the 16Gb of ram and go for 8, Get a 4690K Instead of a 4790K (Nearly no difference in gameplay), And get a Z97 Motherboard, Something like a MSI Z97-G45 Gaming.