What is will this pre-built run and at what quality?

Eximo

Titan
Ambassador
Here's a better build performance wise... no speakers, keyboard, or mouse though.

PCPartPicker part list: http://uk.pcpartpicker.com/p/2lmqq
Price breakdown by merchant: http://uk.pcpartpicker.com/p/2lmqq/by_merchant/
Benchmarks: http://uk.pcpartpicker.com/p/2lmqq/benchmarks/

CPU: AMD Athlon II X4 760K 3.8GHz Quad-Core Processor (£60.91 @ Scan.co.uk)
Motherboard: MSI FM2-A55M-E33 Micro ATX FM2 Motherboard (£32.72 @ Aria PC)
Memory: Kingston Blu 8GB (2 x 4GB) DDR3-1600 Memory (£59.69 @ CCL Computers)
Storage: Samsung Spinpoint F1 DT 1TB 3.5" 7200RPM Internal Hard Drive (£41.90 @ Overclockers.co.uk)
Video Card: Sapphire Radeon HD 7770 GHz Edition 1GB Video Card (£74.28 @ Amazon UK)
Case: BitFenix Merc Alpha (Black) ATX Mid Tower Case (£32.90 @ Amazon UK)
Power Supply: Corsair CX 430W 80+ Bronze Certified Semi-Modular ATX Power Supply (£37.10 @ Amazon UK)
Optical Drive: Samsung SH-224DB/BEBE DVD/CD Writer (£11.98 @ Ebuyer)
Operating System: Microsoft Windows 7 Home Premium SP1 (OEM) (64-bit) (£67.93 @ CCL Computers)
Monitor: LG 22EB23PY-B 22.0" Monitor (£120.64 @ Amazon UK)
Total: £540.05
(Prices include shipping, taxes, and discounts when available.)
(Generated by PCPartPicker 2013-12-16 21:04 GMT+0000)