Looks cool
mobo:The motherboard dont know much about it i use a asus maximus v gene runs like a charm
cpu: i5 depends on what you are doing *read questions*
RAM: Ok with the ram why not go for 2 8gb sticks?
GPU: Damb i'll have that sick gpu
PSU: yep that should be good *read questions*

Overall:
awesome build should be fast!
this build will give you high performance!

Questions:
what games do you play?
do you plan on adding a second graphics card?

Quality build, you should be able to get ultra-high on almost any game.

jvand63 wrote Mobo:ASRock z77 extreme 4
CPU: i5 3570k @ 3.7Ghz
RAM: Corsair vengeance 1800MHz 2x4gb
GPU: Msi gtx 680 lightning
PSU: Corsair 750w tx 80+ certified
How are these pieces? this is my second gaming computer and I got these all for around $1300
so quite cheap. Please tell my your thoughts

Great motherboard (have one myself)
Great CPU (have this aswell)
8gb is enough no need to go 16gb like post above stated
GTX 670 is isnt that bad compared to the 680, might want to look in to that.
And the PSU is good however 600w is plenty for want you have here.

This is all good but may i ask where the rest of the build is?

Was saying two 8gb sticks because my pc usually uses 10gbs

For gaming 8Gb is enough, however if you edit media, render and the like then 16Gb might be more for you. nothing stopping you buying 8Gb first then if its not enough then buy another 8Gb later on!

Remember though...buy matching sets!