Nothing Special, but I have build 3 or these and of course I use as many Gigabyte parts as I can since I've used them for 10 years or so.
I've built these for office use, so there are not fancy lighting features to show off
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I7 3770k, Gigabyte Radeon 7870 (Nice and quiet!), 8GB of GSkill Ram, Z77-UD3H Mobo, 700Watt ToPower PSU, Kingston 120GB SSD, Seagate 2TB HDD. Overclocking mildly to 4.2Ghz.
Fun part is, these are made to run Photoshop and other GFX design programs, and does a bang-up job doing it!