1200-1300$ Gaming Build , need help and advice

Am completely new at this .

Approximate Purchase Date: By the end of March .

Budget Range: 1200-1300$

System Usage from Most to Least Important: Mostly Gaming and surfing the net.

Parts Not Required: Keyboard , mouse , monitor , headphones/speakers , OS.

Preferred Website(s) for Parts: Newegg.com

Country: Philippines

Parts Preferences: Definitely a intel CPU and a Nvidia GPU

Overclocking: Maybe

SLI or Crossfire: No

Monitor Resolution: 1680x1050 ( Will probably buy a new monitor with 1920x1080 in a later date )

Additional Comments: It needs to be able to stay up for long periods like 3-4 hrs on weekdays and 12 hrs on weekends. It also needs to be a moderate noise PC.

------------------------------------------------------------------------------------------------------------------------------

This is what I picked so far.

Chassis : CM Storm Enforcer @ 89.99$
http://www.newegg.com/Product/Product.aspx?Item=N82E168...

CPU : Intel Core i5-2500K Sandy Bridge 3.3GHz @ 229.99$
http://www.newegg.com/Product/Product.aspx?Item=N82E168...

RAM : G.SKILL Ripjaws X Series 8GB (2 x 4GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Desktop Memory Model F3-12800CL9D-8GBXL @ 46.99$
http://www.newegg.com/Product/Product.aspx?Item=N82E168...

The rest is all up to you guys.
Thanks .