[QUOTE="Marco8YNWA, post: 31416, member: 62056"]So maybe I should change my question and ask for some help on a custom PC build, I would say my budget would be about £900 total for at least a pc + one screen and maybe have some money left over to save for an xbox. Any help would be much appreciated and sorry to be such a pain with changing the topic.[/QUOTE]
No worries, mate.
Before I make any suggestions, I'd like to know what kind of Workloads and Games you'd expect to use. As thisisketts said, gaming-laptops are usually on the havier side, which makes gaming desktop + office laptop a better choice. However, if you need a beefy Laptop for your work, a single, more expensive unit 'might' make sense. For example: My friend uses a "relatively" light, but beefy, 17" laptop because he's working a lot with CAD-Software, and then plays some lighter/medium games when he's at home (WoW, Warframe, CS:GO... not at max settings, though). If you don't need a beefy Machine for work, then a cheaper, lighter Notebook with 1080p screen and Onboard graphics is good enough.
If that's the case, then the other Reason why I ask is because of the choices to make for the Desktop. Some Games, like Cities: Skylines or most MOBAs benefit a lot from a newer, higher clocked quadcore CPU, whereas others max out the GPU way before the CPU. If later is the case, you could get by with a cheaper CPU (i5-6400, i5-4460 or even an FX-8350 or i5-3550) and spend the money on a better GPU.
Because of that - and because I don't know the prices in the UK - I can't recommend anything specific. But as a general guideline:
- An Intel i5, Haswell or Skylake (4xxx or 6xxx series) with >3GHz are generally good choices.
- For 1080p/60FPS in the latest Games, on Ultra Settings, you're looking at a GTX970, R9 390 or R9 290X. For 1440p or 120+ Hz, a GTX 980 or R9 Fury is needed. GTX 960 or R9 380 (and lower) for Older, less powerhungry Games or Medium to High settings.
- For MOBAs (League, Dota, Hots), a GTX 950 or 960 is sufficient.
- DON'T bother with CPU-Overclocking and HW if you care about price/performance. The additional costs for an unlocked ( ....K) CPU, a Z... or X.... Motherboard and a decent Cooler will cost about as much as an H....-Motherboard with an i7 (which will outperform any overclocked i5). Invest in overclocking only if you like to tinker and play around with your settings or if you want those "bragging-rights"

- Higher RAM-Speeds only make a difference when you use onboard graphics. If you use a GPU, the Stock-Speeds (1600 for DDR3 and 2133 for DDR4) are fine. Higher clocks tend to have worse timings and more or less cancel each other out, so there's no point for real-life applications (except for the mentioned onboard graphics or bragging rights).
- You could go with a smaller SSD (240GB or so) and only 8GB of RAM for a start and upgrade later - just make sure that you have RAM and Drive slots to spare. Windows 10 uses about 30-50GB, so you'll have enough for a couple of programms and games left. 8GB will also be enough for gaming, as long as you don't have too much stuff in the background, you're streaming or playing the latest AAA-Games with giant maps or mods.
- Don't skimp on the Power-Supply! Just don't. If you over-invest in anything, do it on the PSU. Use reliable Brands (EVGA, SeaSonic, SuperFlower, Corsair, etc.) and something that's at least 80+ Bronze. And google some reviews about the one you are going to buy.
- Don't forget to include a Windows License, Mouse, Keyboard, Ethernet Cable or Wifi Adapter (if you can't salvage them from previous builds). Some Monitors also don't have a DP- or HDMI-Cable included, so you might need one of those too.
- The Intel Stock heatsink is sufficient for a start (saves you 30-50$). If you buy a case with a cut-out behind the Motherboard tray, you will be able to upgrade later without much hassle, if you want to.