I'm building a new gaming system which I will overclock the CPU, memory and GPU (none of them to the extreme but trying to reach a reasonable high limits).
Still not sure about some of the parts and would like to read your opinions:
CPU : Core i5 3570k
CPU FAN : Scythe Mugen 3 rev B
mother board : (where I'm most confused)
MSI Z77A-GD55 (same price as above)
ASUS P8Z77-V (31$ higher than D3H)
MSI Z77A-GD65 (4 SATA3) (15$ higher than P8Z77-V)
Gigabyte GA-Z77X-UD5H (24$ higher thann GD65)
Gigabyte GA-Z77X-UP4 TH (best sound chip) (7$ more than UD5H)
What will give me best features and OC for the price? MSI specs seems rather thin(?) to me.
RAM : G.Skill Ripjaws-X 2x4GB DDR3 1600Mhz PC3-12800 Kit CL9-9-9-24
GPU : ASUS GTX660-DC2-2GD5 or MSI GTX660 N660 TF 2GD5/OC (the MSI is 28$ cheaper. is it possible to overclock a factory-overclocked GPU?)
SSD : Samsung 840 Series 2.5'' 250GB or Transcend TS256GSSD320 (256GB) (both about the same price)
DVD : some LG
PSU : Seasonic 650W Gold X-Series X-650 (12cm fan, 80+ gold) or Corsair TX650M 650W Modular Active PFC 14cm Fan (80+ bronze) (the gold costs about 9$ higher than the bronze)
case : Corsair Vengeance C70 Gunmetal Black Case or Antec Nine Hundred Two V3 Mid-Tower Gaming Case (same price)
side-fan : orsair Air Series SP120 High Performance Edition High Static Pressure 120mm Fan
I put in a recommendation for the AsRock Z77 Extreme4.
But of the boards listed, I would pick the Gigabyte GA-Z77X-D3H. All the others are either just not as good or make you pay for features you just wont ever need.
EDIT: realized there were other questions.
Go with the Samsung 840.
Hell, I would pay $9 just for the Seasonic name even if it had the same features, go for the Seasonic.
Cases are very subjective, you will be the one who ultimately will have to look at it every day. Get the one you like the look of, both are good options. Though personally if I had to pick between the two, I would go for the Corsair.