Sorry but why in the Android forum?
Are you considering building your own gaming PC?
Check you this what you need:
-Vga monitor,
-Speakers
-UPS
-Intel i5 2 gen compatible with motherboard
-Seagate hdd 500 gb 4100
-Writer samsung dvd writer 24x
-Graphic card msi radeon 6600 1gb
-RAM simmtronics ddr3
-Psu cooler master 450 watts

Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic