Originally a prebuilt for me but I became really interested in computers, and recently i've been upgrading parts. Prices are in AUD.
CPU: D0 revision, OC's to 3.8 no worries. Keeps up with modern i5's.
MoBo: Punted the s**t out of this, still works.
CPU Cooler: Cools 4ghz @ 73°C on IntelBurnTest.
RAM: Solid stuff.
Storage: Raid0, speeds reach ~700MB sequential, storage was not important but speed was.
Graphics: Actually a Gigabyte HD7990. Got it on a special price, and about $50 more than my previous 680, so lots of value here.
Case: Bigger is better :)
PSU: Better than you'd expect, good reviews and solid performance.
Monitor: Korean 1440P monitor OC'd to 96hz keeping it at a 1:3 ratio for the 24hz of videos and movies.
Keyboard: Ugly but does what it needs to do and CherryMX Brown have a solid fluent feel over membrane switches.
Headphones: Very tight around my head and are uncomfortable, good sound and noise cancelling mic which is good.
Mouse: Fits my hand, good for palm grip and pretty solid all around.