I had my friend help me with this but he isn't exactly what you called a professional.
I would like to be able to run games such as Skyrim, BF3 or Alan Wake on ultra or high quality at a high FPS.
Is this a good build and are there any cheaper alternate to any parts:
It's got less PCI-e slots than your choice, but it's from their respected ROG line of boards so it's a quality board that'll easily handle overclocking your K series processor. But considering you're using a full tower case, putting a Mirco-ATX board there might look a little funny.
Again, if you're on a budget, the ASRock isnt a bad choice either:
Also, on a side note, if you do plan to overclock that CPU of yours, I'd recommend getting a quality heatsink instead of using the stock one that comes with the CPU. If you want to go with air cooling, the Noctua NH-D14 is widely considered to be one of the best (but it's also massive so keep that in mind, though I think your case should be large enough); if however you want to go the water cooling route, I'd recommend the Corsair H80 which is a good closed loop, no maintenance water cooling solution. I would recommended the H100 but I don't think your case can support it.