How much to build a gaming computer to run star craft on full settings no lag and LOL

[garnish]

Looking to build a desktop that can run SC on full settings with no lag i mostly play arcade games online. And i play a lot of LOL so mostly online vs games for me. I put a motherboard down here and a processor not sure if they are the good ones. I have never built a p.c before so all opinions welcomed and i would like to keep my budget under 2,400 the cheaper the better

Mother board- ASRock Fatal1ty Z87 Killer LGA 1150 Intel Z87 HDMI SATA 6Gb/s USB 3.0 ATX Intel Motherboard
http://www.newegg.com/Product/Product.aspx?Item=N82E16813157460&Tpk=asrockz87killer

Processor- Intel Core i7-4770K Haswell 3.5GHz LGA 1150 84W Quad-Core Desktop Processor Intel HD Graphics BX80646I74770K
link- http://www.newegg.com/Product/Product.aspx?Item=N82E16819116901

 

[Kojitsari]

Here's a build without the peripherals. It's pointless to get the i7 over the i5 when you're talking about gaming....hyper threading really doesn't make a difference with gaming. The motherboard I picked is a better quality one over the one that you listed. This build can easily max Start Craft and League of Legends, It should actually play Battlefield 4 maxed out also (it's a more strenuous game). Actually for league of legends the Intel HD 4600 can max it out...(it's really not demanding, I got 80 constant fps off my HD 4600 even in max team fights when I was waiting for my gpu). If you have questions about the parts I picked, or why I picked them let me know and I'll do my best to explain. Oh if you the accessories also I can recommend some good ones (in my opinion of course ^_^).
http://pcpartpicker.com/p/2n3Lt