Let me just begin by addressing the vast majority of people who I predict will attempt to teach me about budgeting in the comments. You may be thinking "What the heck was he thinking spending that much on a 980 ti and getting a bunch of bad components!" You see, I got the 980 Ti second hand for just £200! The reason it was so cheap was because it had "overheating problems", but that is still to be found out by me. It gets around 32°C, please let me know if this is normal for this card BTW: reference cooler
This is actually more of an upgrade that a full build but I didn't bother making for my original build so thought I'd do one now. Originally I had a MSI R9 270 Twin Frozr but, apart from a few minor tweaks, the same stuff. I can't recommend this build to anyone as it really hold back the 980 Ti, close to what my R9 270 was getting - minus all the cool GameWorks stuff I can enable now.
CPU: FX 6300 is great for a cheap build but I will one day upgrade to an i3 or i5 Skylake CPU, but this is a big upgrade as I will also need a new motherboard and RAM. Stock cooler keeps it nice and toasty. Great for cold winters.
Motherboard: Funny story - when I bought my Asus M5A78L-M LX3 it was probably the last one over made because a week later it was discontinued and Asus didn't even have any recognition of it's existence, and no drivers too. It doesnt even have USB 3.0. I literally just sorted Price - Low to High and bought the first thing I saw.
RAM: 8GB of standard issue DDR3. Was also the cheapest DIMM I would find at the time.
Storage: OS and main programs on SSD and everything else spread across WD blue and 2 500GB HDDs (no RAID or anything they are individual items).
PSU: Got the cheapest with enough wattage, but it broke in the first few days. Thank God everything else survived. This is a component that has a huge difference between good and bad. Don't buy anything under £40 and you'll probably be OK.
OS: Windows 8.1 cost £80 when I bought, but now I have free upgrade to Windows 10.
Monitor: A value-oriented 1080p monitor with good reviews.
Case: I seriously have no idea what brand or model it is, so if you could let me know that would be great. I bought it off of some guy in an alley at night with an entire PC inside for £10 and decorated it with RAM, processors and stickers from previously owned hardware.