Is this build good?

This is my first gaming pc so i'm not sure how good this was for the price. Also is there a big difference in the i3 2100 and the i5 2400 if I only plan on gaming and searching the web and some school stuff. Also is the psu I picked ok do I need 600w or can i get something lower?

Approximate Purchase Date: This week or next

Budget Range: $800 max

System Usage from Most to Least Important: Gaming

Parts Not Required: keyboard, mouse, monitor, speakers, OS

Preferred Website(s) for Parts: newegg.com or site like it. I can not get to a microcenter

Country: US

Parts Preferences: Any gpu that can run most games on high, an i3 2100 or i52 400

Overclocking: nope

SLI or Crossfire: nope

Monitor Resolution: Well I am going to use a tv for month or two so it has to work on that till I can get a monitor

Additional Comments: I would like to play games such as Skyrim, and SWTOR on high settings.

My Build

CPU/RAM combo i5 2400, corsair vengeance 8GB
http://www.newegg.com/Product/ComboDealDetails.aspx?Ite...

Mobo ASRock z68
http://www.newegg.com/Product/Product.aspx?Item=N82E168...

GPU Gigabyte GTX 560 Ti
http://www.newegg.com/Product/Product.aspx?Item=N82E168...

Case Rosewill Challenger
http://www.newegg.com/Product/Product.aspx?Item=N82E168...

PSU/HDD combo Corsair builder 600W, seagate 500GB
http://www.newegg.com/Product/ComboDealDetails.aspx?Ite...

Optical drive LG DVDhttp://www.newegg.com/Product/Product.aspx?Item=N82E168...

This came to about $779 with shipping and before rebates.