Need help reducing the price of a Budget Gaming PC

PCPartPicker part list / Price breakdown by merchant

CPU: AMD FX-8320 3.5GHz 8-Core Processor (£109.87 @ Dabs)
Motherboard: Gigabyte GA-970A-UD3P ATX AM3+ Motherboard (£64.20 @ More Computers)
Memory: Kingston Savage 8GB (2 x 4GB) DDR3-1600 Memory (£35.63 @ Ebuyer)
Storage: Western Digital Caviar Blue 1TB 3.5" 7200RPM Internal Hard Drive (£38.70 @ Amazon UK)
Video Card: XFX Radeon R9 280X 3GB Black Edition Double Dissipation Video Card (£206.85 @ Amazon UK)
Case: Corsair SPEC-01 RED ATX Mid Tower Case (£37.99 @ Amazon UK)
Power Supply: XFX 650W 80+ Bronze Certified ATX Power Supply (£59.99 @ Aria PC)
Optical Drive: Samsung SH-224DB/BEBE DVD/CD Writer (£9.38 @ CCL Computers)
Operating System: Microsoft Windows 10 Home OEM (64-bit) (£73.99 @ Aria PC)
Wireless Network Adapter: Asus PCE-N10 802.11b/g/n PCI-Express x1 Wi-Fi Adapter (£11.60 @ Amazon UK)
Keyboard: Cooler Master CM Storm Devastator Gaming Bundle Wired Gaming Keyboard w/Optical Mouse (£23.99 @ Amazon UK)
Total: £672.19
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2015-09-16 22:14 BST+0100

CPU can be overclocked to 8350 speeds with 3 mouse clicks
Much better mb
cheaper but just as good graphics card
power supply that has a high enough wattage rating
Swapped out the hybrid drive . The Hybrid is nice , but the cache is so small all you get is faster booting and not game loading
 
Solution


Can't you purchase Windows 7 or Windows 8 for cheaper and upgrade for free? Great build nonetheless.