[Alex]

Price: $500.
Do you want a SSD?: Yes.
Do you want to overclock your build? If the performance would benefit the cost.
What are you using this build for? Gaming (only CS:GO), rendering, and running compilers.

If you want in U.S dollars lemme know but I'm pretty sure you are from the UK.

PCPartPicker part list / Price breakdown by merchant

CPU: AMD Athlon X4 860K 3.7GHz Quad-Core Processor (£53.59 @ Aria PC)
CPU Cooler: Cooler Master Hyper 212 EVO 82.9 CFM Sleeve Bearing CPU Cooler (£24.95 @ Aria PC)
Motherboard: Gigabyte GA-F2A88XM-D3H Micro ATX FM2+ Motherboard (£46.78 @ Amazon UK)
Memory: G.Skill Ripjaws X Series 8GB (1 x 8GB) DDR3-1333 Memory (£37.99 @ Amazon UK)
Storage: Sandisk SSD PLUS 120GB 2.5" Solid State Drive (£37.99 @ Amazon UK)
Storage: Western Digital Caviar Blue 1TB 3.5" 7200RPM Internal Hard Drive (£38.98 @ CCL Computers)
Video Card: Sapphire Radeon R9 270X 2GB Dual-X Video Card (£140.83 @ Dabs)
Case: NZXT Source 210 (Black) ATX Mid Tower Case (£34.98 @ Amazon UK)
Power Supply: EVGA 500W 80+ Certified ATX Power Supply (£29.95 @ CCL Computers)
Total: £446.04
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2015-08-25 02:11 BST+0100

or

PCPartPicker part list / Price breakdown by merchant

CPU: AMD FX-6300 3.5GHz 6-Core Processor (£78.87 @ Ebuyer)
CPU Cooler: Cooler Master Hyper 212 EVO 82.9 CFM Sleeve Bearing CPU Cooler (£24.95 @ Aria PC)
Motherboard: Gigabyte GA-970A-DS3P ATX AM3+ Motherboard (£51.00 @ Aria PC)
Memory: G.Skill Ripjaws X Series 8GB (2 x 4GB) DDR3-1866 Memory (£39.38 @ Ebuyer)
Storage: Sandisk Solid State Drive 64GB 2.5" Solid State Drive (£29.09 @ CCL Computers)
Storage: Western Digital Caviar Blue 1TB 3.5" 7200RPM Internal Hard Drive (£38.98 @ CCL Computers)
Video Card: MSI Radeon R9 380 4GB Video Card (£178.98 @ Amazon UK)
Case: NZXT Source 210 (Black) ATX Mid Tower Case (£34.98 @ Amazon UK)
Power Supply: EVGA 500W 80+ Certified ATX Power Supply (£29.95 @ CCL Computers)
Total: £506.18
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2015-08-25 02:24 BST+0100

To get the performance out of this builds you will have to overclock the cpus.