UPDATE - 23 September 2014 - Not much change, got more RAM some months ago.
UPDATE - 24 April 2014 - Using Windows 8.1 Pro with StartIsBack on a laptop hard drive as can't bother overwrite the SSD. The Corsair headset was in pretty bad shape without EQing the highs.
UPDATE - 15 March 2014 - I got a new keyboard, the Logitech G710+. Great for the price! I also am ordering the Corsair 1400 soon.
CPU: I chose the Intel i5 4570 because it was a very good mid-range CPU and I didn't feel like paying the extra to get an unlocked processor to OC because I'd need to spend even more money on a Z87M motherboard.
Cooler: I chose the CM TPC 812 because it was an absolute steal at the price and it's quite decent cooling performance but is intended to be a placeholder before I get a CM Seidon 120 or Corsair H60 and run a push/pull setup as prices are lowering month by month :)
Motherboard: I chose the ASUS H87m-PRO because it was the most feature packed H87, having everything I wanted and nothing I didn't. I chose the H87 chipset because it basically is a Z87 without OC, which I didn't need.
EDIT: You can do a non-z OC with K-series chips, didn't know this until a few weeks ago. Should have gotten a 4670k... Link: http://www.asus.com/News/jLaOehAeS7oh3NYi
Memory: I basically got the cheapest low profile 8GB 1600MHz RAM i could get. In the future I'd like to get another 8GB of ram because in normal use (having Chrome, iTunes and skype open) uses 3GB of ram and on top of that I set the Intel HD Graphics to have 512MB of VRAM while my 270x's order is being processed ATM... And with Samsung's SSD Magician, I can run R.A.P.I.D mode without worrying about RAM issues. Now have 16GB RAM so I'm happy :D
SSD: I chose the Samsung 840 EVO because it is the most popular SSD at the moment and has really good performance
HDD 1: I chose the WD Caviar Black because it was recommended to me and I prefer WD as to Seagate. 2TB is a good size for people that have loads of games and records them uncompressed.
HDD 2: The Scorpio Blue is my Windows 8 Drive. Don't use anymore.
HDD 3: That's my OS X Mavericks drive. Don't use anymore.
GPU: I wanted the Gigabyte 760 Rev.2 but all of my mates were like no get a 280x but I didn't have the money so I got the 270x which only has a few less FPS in general compared to the 760 while being waaay cheaper.
I have got the card now and it is really good, delivering 60 fps on PS2 and around 50 for Assetto Corsa (car game) which is fine for me. I forgot to say I got a free copy of BF4 with it which is always good :D
Optical Drive: My dad said get a Blu-Ray drive so I just got one. And yes I do use the Blu Ray for ripping hired BDs, shh :)
PSU: I chose the CM V650S because it was an absolute deal for a 650W 80+ Gold PSU! Semi modular too, helps with dem cables :D
Case: I chose the Fractal Design Arc Mini R2 because I got a mATX motherboard so I might as well just get a mATX case, airflow is great with the 3 included fans and it is silent as hell! I originally wanted to go the Corsair side because the 2 other PC's in the house use the 600R and the 500R respectively but the specs and reviews pointed out the 200R and the 230T wouldn't fit my TPC 812 so I went with the Fractal.
Monitor: Got it before I built it, needed a monitor because I kinda raged at my laptop and destroyed the display... Then got a replacement and it didn't work >:( Picture quality is good, good...
Keyboard: It's a really good general purpose keyboard but it'd be nice to get something like a Raptor K30 or something. Next purchase for the PC probably will be a keyboard or headphones (Sennheiser HD 449/558).
Mouse: Got it because it was cheaper (sale) than my other choice, the Logitech M950/Performance Mouse MX and had a higher DPI. It is really ergonomic and the 6 side buttons are the perfect amount (for FPS games) so yeah. Looks nice too :)
Speakers: Wanted a 5.1 and this was the best sound/price ratio at the time of purchase. They sound great, punchy but not overpowering bass, warm mids and crisp and clear highs without being tinny.
Headphones: Just wanted some good cheapies, got them half price because of a 2 for 1 deal so me and my mate got the other one. My next step up will be either the Sennheiser HD 449s or the HD 558s, I'm a bit iffy on open backs so I'll have to try them out :)
Thanks for reading my build!