£660 first build would like advice on a build

With this build, you lose some compute performance, but gain a ton of gaming performance. And, it costs less.

PCPartPicker part list / Price breakdown by merchant

Type Item Price
CPU Intel Core i3-4150 3.5GHz Dual-Core Processor £84.12 @ Aria PC
Motherboard ASRock H97M PRO4 Micro ATX LGA1150 Motherboard £66.17 @ Amazon UK
Memory G.Skill Ripjaws X Series 8GB (2 x 4GB) DDR3-1600 Memory £54.00 @ Kustom PCs
Storage Western Digital Caviar Blue 1TB 3.5" 7200RPM Internal Hard Drive £42.97 @ CCL Computers
Video Card MSI Radeon R9 280X 3GB TWIN FROZR Video Card £175.54 @ Scan.co.uk
Case Fractal Design Arc Midi R2 (Black) ATX Mid Tower Case £67.64 @ Dabs
Power Supply EVGA 430W 80+ Certified ATX Power Supply £25.87 @ Amazon UK
Optical Drive Pioneer BDC-207DBK Blu-Ray Reader, DVD/CD Writer £39.14 @ Aria PC
Operating System Microsoft Windows 8.1 (OEM) (64-bit) £74.09 @ Amazon UK
Prices include shipping, taxes, rebates, and discounts
Total £629.54
Generated by PCPartPicker 2015-03-07 16:10 GMT+0000

Or, you could go to the very top of your budget and lose a little less compute performance and the option to overclock, but still get that gain in gaming performance.

PCPartPicker part list / Price breakdown by merchant

Type Item Price
CPU Intel Core i5-4590 3.3GHz Quad-Core Processor £154.11 @ Ebuyer
Motherboard ASRock H97M PRO4 Micro ATX LGA1150 Motherboard £66.17 @ Amazon UK
Memory G.Skill Ripjaws X Series 8GB (2 x 4GB) DDR3-1600 Memory £54.00 @ Kustom PCs
Storage Western Digital Caviar Blue 1TB 3.5" 7200RPM Internal Hard Drive £42.97 @ CCL Computers
Video Card MSI Radeon R9 280X 3GB TWIN FROZR Video Card £175.54 @ Scan.co.uk
Case Fractal Design Arc Midi R2 (Black) ATX Mid Tower Case £67.64 @ Dabs
Power Supply EVGA 430W 80+ Certified ATX Power Supply £25.87 @ Amazon UK
Optical Drive Pioneer BDC-207DBK Blu-Ray Reader, DVD/CD Writer £39.14 @ Aria PC
Operating System Microsoft Windows 8.1 (OEM) (64-bit) £74.09 @ Amazon UK
Prices include shipping, taxes, rebates, and discounts
Total £699.53
Generated by PCPartPicker 2015-03-07 16:14 GMT+0000
/r/buildmeapc Thread