Any thoughts/suggestions on this parts list?

Here are those changes


PCPartPicker part list / Price breakdown by merchant

CPU: Intel Core i5-6400 2.7GHz Quad-Core Processor (£161.36 @ Scan.co.uk)
Motherboard: Asus H110M-K Micro ATX LGA1151 Motherboard (£47.99 @ Amazon UK)
Memory: Crucial 8GB (2 x 4GB) DDR4-2133 Memory (£34.62 @ Amazon UK)
Storage: Western Digital Caviar Blue 1TB 3.5" 7200RPM Internal Hard Drive (£42.99 @ Amazon UK)
Video Card: EVGA GeForce GTX 1060 6GB 6GB SC GAMING Video Card (£237.99 @ Ebuyer)
Case: CiT SPECTRE WHITE ATX Mid Tower Case (£33.99 @ Amazon UK)
Power Supply: XFX ProSeries 450W 80+ Bronze Certified ATX Power Supply (£50.84 @ Amazon UK)
Total: £609.78
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2016-10-02 19:42 BST+0100
 
Solution
Looks good, although I'm wondering why you went with a last-gen Haswell CPU instead of Skylake and equivalent mobo+RAM.

Here are those changes


PCPartPicker part list / Price breakdown by merchant

CPU: Intel Core i5-6400 2.7GHz Quad-Core Processor (£161.36 @ Scan.co.uk)
Motherboard: Asus H110M-K Micro ATX LGA1151 Motherboard (£47.99 @ Amazon UK)
Memory: Crucial 8GB (2 x 4GB) DDR4-2133 Memory (£34.62 @ Amazon UK)
Storage: Western Digital Caviar Blue 1TB 3.5" 7200RPM Internal Hard Drive (£42.99 @ Amazon UK)
Video Card: EVGA GeForce GTX 1060 6GB 6GB SC GAMING Video Card (£237.99 @ Ebuyer)
Case: CiT SPECTRE WHITE ATX Mid Tower Case (£33.99 @ Amazon UK)
Power Supply: XFX ProSeries 450W 80+ Bronze Certified ATX Power Supply (£50.84 @ Amazon UK)
Total: £609.78
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2016-10-02 19:42 BST+0100

EVGA White PSUs are fine, and the 6400 performs worse than the 4460. The 4460's Skylake equivalent (which performs slightly better) is the 6500.
 
EVGA White PSUs are fine, and the 6400 performs worse than the 4460. The 4460's Skylake equivalent (which performs slightly better) is the 6500.


The 6400 is not worse than the 4460. The 4460 only had a 100mhz edge in turbo speed across all cores which the 6400 easily makes up for with a stronger IPC. Performance would nearly identical, but if you wanted to run benchmarks to find a winner, you'd find the 6400 is 2-6% faster in the end.
 


That's assuming either CPU is going to boost all cores to max, which they won't without even a basic aftermarket cooler (especially since Intel has the indecency to strip out that little copper slug from their stock cooler for the Skylake chips).
 
That's assuming either CPU is going to boost all cores to max, which they won't without even a basic aftermarket cooler (especially since Intel has the indecency to strip out that little copper slug from their stock cooler for the Skylake chips).


The Intel stock cooler is plenty good enough to run all 4 cores at full turbo indefinitely assuming there is at least a reasonable amount of airflow in the case.