Trying to come up with an £800 ish build for gaming

You have a pretty good build there. extra fans aren't necessary if you want to save money. The power supply is a little too much wattage, I would recommend 550-600 watts.

Aside from a few minor things, it's pretty solid.

750W PSU is massive overkill for the system as it stands. The motherboard you picked doesn't support SLI as it's a bit on the cheap side for a Z87, so you'll never be able to use all that wattage. 550W or so is more than enough.

What I would say is that for an £800 build, it's pretty light on the graphics side of things. If you are limited to a lower resolution, then spending more on graphics doesn't make a lot of sense, but if you want to maximise gaming performance at 1080P+ then stepping up to at least a 280X/GTX770 isn't a bad idea.

Here's a non-overclocking build for £160 less, which will totally outperform it as a gaming platform.
PCPartPicker part list / Price breakdown by merchant / Benchmarks

CPU: Intel Core i5-4430 3.0GHz Quad-Core Processor (£127.99 @ Aria PC)
Motherboard: ASRock B85 Pro4 ATX LGA1150 Motherboard (£54.88 @ Amazon UK)
Memory: Patriot Viper 3 8GB (2 x 4GB) DDR3-1600 Memory (£59.99 @ Amazon UK)
Storage: Seagate Barracuda 1TB 3.5" 7200RPM Internal Hard Drive (£39.98 @ Aria PC)
Video Card: Gigabyte Radeon R9 280X 3GB Video Card (£223.66 @ Amazon UK)
Case: BitFenix Shinobi ATX Mid Tower Case (£49.99 @ Amazon UK)
Power Supply: XFX 550W 80+ Bronze Certified ATX Power Supply (£45.00 @ Aria PC)
Operating System: Microsoft Windows 7 Home Premium SP1 (OEM) (64-bit) (£69.66 @ CCL Computers)
Total: £671.15
(Prices include shipping, taxes, and discounts when available.)
(Generated by PCPartPicker 2014-02-07 17:08 GMT+0000)

The i5-4430 will be perfect for your uses. BUT, if you but the i5-4430, you won't be able to overclock easily because it's a locked processor.

Your case is full ATX and will support all varieties of motherboards.

ALL necessary screws and cables will come with the case, or at least they do 99.9% of the time. You might have to buy some extra screws though, as often they don't give you enough.

Thomas.

The size of your screen is irrelvant, it's the display resolution that matters. A 1080P 20inch screen requires the same amount of graphics power as a 1080P screen the size of a football field.

Your build looks ok though. If you want to tinker with things, I'd suggest these-
Basically any i5 has similar performance at stock speeds, so cheapest is best really. Having said that the 4440 is only £1 more, so I should have included it.
A modular PSU might be something of interest to you. It's not something you "need" but it's a nice thing to have, and a reasonable thing to spend a few pounds on. There is a 650W XFX for £70 which is probably the cheapest semi modular PSU I'd recommend. There is also a 550W XFX for £77, which isn't as good value, but has the benefit of being fully modular and 80Plus Gold rated (better efficiency).
You don't really need a CPU cooler, or thermal paste. The Intel stock cooler is perfectly sufficient, and if you decide you want to reduce noise or temps, it's a fairly easy thing to add somewhere down the line.



1. At stock speeds, there is very little between any modern i5s (even 2000series) for gaming. Overclocking will gain you extra performance in some CPU intensive tasks, but it's not going to be huge, and an i5 of any description is unlikely to bottleneck any single graphics card. Most likely, your graphics card will age a lot quicker than your CPU.

2. Nope the Storm Enforcer is decent. It's not exactly subtle looking, and any case with a mesh front is going to be skewed more towards airflow than silence, so it's something to keep in mind. You shouldn't have any issues fitting things inside though. It's also pretty reasonably priced given it's quality.

3. Hard to say for sure. Motherboards usually come with something like two SATA cables, though sometimes they are more generous. Everything else is really just power cables, and those will all come on your PSU.
The only thing to watch for on the PSU is whether or not it has enough PCIe power cables to support whichever graphics card you pick. The 280X requires one 8pin and one 6pin PCIe power. All of the PSUs I've listed come with this (or better).

The i5 4430 and i5-4670k don't have much difference in performance but the i5-4670k is overclockable and the i5-4430 cannot be overclocked more than 200MHz or something like that.