Is this build good

 i5 3570k

as rock extreme 4 z77 motherboard 

g.skill 8gb low profile ram DDr3 1600

noctua n14

gigabyte 7970 

western digital 1 TB

kingston v300 120 gb ssd

GX 650 coolermaster power supply 

thermaltake RX-I overseer case


Yes.. That's fantastic! With the Noctua NH-D14 , ou can easily overclock the i5 3570k to 4.2Ghz .