Any advice on which would be the better option, would be much appreciated.
Here is my build list
Power Supply Unit
Corsair Memory 600W Builder Series CX V2 ATX PSU
Antec 300 Three Hundred Two Case + 3/4 Case Fans
AsRock Z77 Extreme4 Motherboard (Socket 1155, Intel Z77, Up to 32GB DDR3, ATX, 2 x SATA3 6.0 Gb/s, Supports NVIDIA SLI and AMD CrossFireX, Premium Gold Caps)
Intel 3rd Generation Core i5-3570K CPU (4 x 3.40GHz, Ivy Bridge, Socket 1155, 6Mb L3 Cache, Intel Turbo Boost Technology 2.0)
Note: I may go for the Core i7-3770k if I can find a good deal.
Cooler (to be added later when overclocking, using stock to start with)
Cooler Master Hyper 212 Evo Processor cooler
Corsair Vengeance LP 16GB (2 x 8GB) DDR3-1600 Memory
LiteOn iHAS124 SATA DVD Write Optical Drive
Graphics Card - Want to leave option open for added another GPU later
Sapphire 11179-09-20G HD 6870 1GB GDDR5 Graphics Card
Seagate 1TB Barracuda SATA 6Gb/s 64MB 7200RPM Hard Drive
To be added later