Good or bad rig?

Hardware Build a PC
1

This will be my first gaming computer and my first time building a computer. I'll be playing bf4, rust, minecraft, skyrim, metro: last light, and a few others.

 

Case: http://www.newegg.com/Product/Product.aspx?Item=N82E16811119260

Motherboard: http://www.newegg.com/Product/Product.aspx?Item=N82E16813131837

CPU: http://www.newegg.com/Product/Product.aspx?Item=N82E16819115233

GPU: http://www.newegg.com/Product/Product.aspx?Item=N82E16814127754

Ram: http://www.newegg.com/Product/Product.aspx?Item=N82E16820233300

Power: http://www.newegg.com/Product/Product.aspx?Item=N82E16817139020

OS: http://www.newegg.com/Product/Product.aspx?Item=N82E16832416778

CD thingy: http://www.newegg.com/Product/Product.aspx?Item=N82E16827135204

 

Now I have some questions. Whats the difference between the i5-3570 and the i5-3570k? Also I don't think I need a gtx 780? Would a like 770 be good? Or maybe this 760 http://www.newegg.com/Product/Product.aspx?Item=N82E16814121775 . Would all this work together? And the last question is, Would I need a cpu cooler? If so what is a good one.

2

The difference between the 3570 and 3570k is that the K chip is overclockable. Basically you can increase the speed from 3.4ghz to (example) 4.0ghz. Most all chips can go past 4.0ghz (very low overclock) but to go up any, it requires an aftermarket cooler which are pretty cheap, this is a very good one for only $30-$40: http://www.newegg.com/Product/Product.aspx?Item=N82E16835103099&clickid=3T90wPVw3wePWQBRR-zlM1I1UkT1E-y5uSYx280&iradid=97618&ircid=2106&irpid=79301&nm_mc=AFC-IR&cm_mmc=AFC-IR-_-na-_-na-_-na 

Your build should all work together just fine. I'd recommend using a newer Processor and Motherboard like the 4670k. Its an I5 that is just a generation newer than yours. You can get it here: http://www.newegg.com/Product/Product.aspx?Item=N82E16819116899&clickid=3T90wPVw3wePWQBRR-zlM1I1UkT1E6zVuSYx280&iradid=97618&ircid=2106&irpid=79301&nm_mc=AFC-IR&cm_mmc=AFC-IR-_-na-_-na-_-na If you get that processor you also need a compatible motherboard like this one: http://www.newegg.com/Product/Product.aspx?Item=N82E16813131981&clickid=3T90wPVw3wePWQBRR-zlM1I1UkT1E6RxuSYx280&iradid=97618&ircid=2106&irpid=79301&nm_mc=AFC-IR&cm_mmc=AFC-IR-_-na-_-na-_-na

I would also advise getting the best graphics card you can. You don't need a Gtx 780, but if you get the Gtx 780 you won't have to replace it as soon as if you bought the Gtx 760. I'd also encourage you to look into an Amd processor and motherboard combination like this: http://pcpartpicker.com/p/m155 It will be much stronger than the Intel Processor and Motherboard, weather its the 3570k or 4670k combination, the Amd will be stronger into the future.