Here's a bottom-end config using the Intel NUC:
My basket at Overclockers UK:
Even with VAT it's well within your budget.
My basket at Overclockers UK:
- 1 x Philips 328P6VJEB 32" 3840x2160 VA 4K 60Hz Widescreen LED Monitor - Black *5yr Warranty*= £409.99
- 1 x Primo Nano Celeron - Intel NUC NUC6CAYH Celeron J3455 Quad Core = £294.01
- Operating System:Unwanted
- Security Software:Unwanted
- Solid State Drive:WD Green 3D NAND 120GB 2.5" SATA 6Gbps Solid State Drive (WDS120G2G0A)
- Memory:Kingston HyperX Impact Black Series 8GB 1600MHz DDR3L CL9 SODIMM Kit of 2 1.35V (HX316LS9IBK2/8)
Total: £727.10 (includes shipping: £23.10)
Even with VAT it's well within your budget.