Help building a rig

hi there i just need an opinion for building a new rig

im building a budged gaming pc, already got from my old one the hdd, optical drive, psu, and video card im upgrading the procesor, motherboard, ram and heatsink im considering this deal for $500

Intel Core i5-3570K Ivy Bridge 3.4GHz (3.8GHz Turbo) LGA 1155 77W Quad-Core Desktop Processor Intel HD Graphics 4000 BX80637I53570K $229.99
http://www.newegg.com/Product/Product.aspx?Item=N82E168...

ASRock Z77 Extreme4 LGA 1155 Intel Z77 HDMI SATA 6Gb/s USB 3.0 ATX Intel Motherboard $134.99
http://www.newegg.com/Product/Product.aspx?Item=N82E168...

COOLER MASTER Hyper 212 EVO RR-212E-20PK-R2 Continuous Direct Contact 120mm Sleeve CPU Cooler Compatible with latest Intel 2011/1366/1155 and AMD FM1/FM2/AM3+ $34.99
http://www.newegg.com/Product/Product.aspx?Item=N82E168...

G.SKILL Ripjaws X Series 16GB (2 x 8GB) 240-Pin DDR3 SDRAM DDR3 1866 (PC3 14900) Desktop Memory Model F3-1866C9D-16GXM
http://www.newegg.com/Product/Product.aspx?Item=N82E168...

what do you think is ok or should i swap something for the same value i got $550 max budget