I built my first workstation in over 5 years and this is the first machine I've ever overclocked and I don't feel like I've really pushed it yet either.
The HAF X was a pleasure to work with and the X79 Deluxe has some amazing features even though I did have problems booting windows via usb. This was my first attempt at cable management, you can see my last machine in some of the initial shots. Will add a few pictures when the study redecoration is complete...
The Agility 3 ssd is an old one that's acting as a cache drive with one of the samsung HDD's, 2 of the drives are in the hot swap bays, and I'm saving up for a NAS. In a few weeks going to add a second GTX 780 and probably a second system ssd.
The main uses for this build are 3d modelling and motion graphics, adding more CUDA capable GPU's is top of the shopping list!