Is this a good build?!

[sargauth]

Motherboard:ASUS P8Z77-V PRO LGA 1155 Intel Z77 HDMI SATA 6Gb/s USB 3.0 ATX
VGA: 2x SLI GIGABYTE GV-N670OC-2GD GeForce GTX 670 2GB 256-bit GDDR5 PCI Express 3.0 x16 HDCP
CPU:Intel core i5 3570k
CPU cooler:Hyper 212 EVO
PSU:CORSAIR HX Series HX750 750W ATX12V 2.3 / EPS12V 2.91 SLI Ready CrossFire Ready 80 PLUS GOLD Certified Modular Active PFC
SSD:SAMSUNG 840 Series MZ-7TD120BW 2.5" 120GB SATA III Internal Solid State Drive (SSD)
HD:Seagate Barracuda ST31000524AS 1TB 7200 RPM SATA 6.0Gb/s 3.5" Internal Hard Drive -Bare Drive
Case: Cooler Master HAF 922 - Mid Tower Computer Case with USB 3.0 Ports

1-Is this a good build?
2-With this PSU, will I be able to overclock the graphic cards?

 

[ajl2011shooter]

1-yes
2-yes

nice build man

 

[AMD Radeon]

if you will use multimonitor setup
2x SLI GIGABYTE GV-N670OC-2GD GeForce GTX 670 2GB
you might want SLI 4GB version

 

[devilofdeaths]

if you will use multimonitor setup
2x SLI GIGABYTE GV-N670OC-2GD GeForce GTX 670 2GB
you might want SLI 4GB version

or crossfire 7970's because they have 3gb of VRAM