Help me build a compootar

Is 250gb going to be enough for all your games?
You can get a 1tb HDD for less than that SSD.

Looks to be a very solid build, add a 1TB or more and you are good to go

For the love of the old and the new Gods. Remove the MSI.

Look into buying 1866mhz ram 1600mhz will start to limiting with the insane gpu and cpu you have. Ram is cheap fortunately.

It's been quite a while since I built my last PC built (I've been just upgrading it cheaply for last 4+ years ;p), but going for 550W PSU seems kind'a limiting yourself - let's say any time in the future you decide to tweak your build at a lower cost - you will have multiple ways to do so - do some basic OverClocking and install some basic cooling system, buy additional GPU cheaply when new generation comes and go SLI, decide to invest into older generation GPU but heavily overclocked with massive additional cooling unit - by choosing only 550W PSU you decline yourself of all these future options making any future upgrades more expensive - while you can get much better Power Unit at not much bigger cost - sure you won't use it to 100% from a start, but later on it will give you more flexibility if you decide just to upgrade your system instead of building new one.

if u haz $$$
http://uk.pcpartpicker.com/part/evga-video-card-04gp43778kr
idk but i think this is a really good one

Realistically, it all looks pretty decent.
Solid choices in brands and models in general. I really only have a couple suggestions, and the first two regard your RAM.

I would first suggest you do some research on your RAM warranties and timings. That Kingston RAM is, IMO, quite overpriced for the actual latency of the RAM. The bonus is it's a lifetime warranty. However, I find that I can usually find some Mushkin RAM with better timings than the Kingston, still with lifetime warranty, for less.

The second suggestion is something that people are liable to jump all over with "blah blah YOU DON'T NEED THAT!!!111!!1!" comments... But I advise you buy a 16GB kit, not an 8GB. I built my PC in 2010 when everyone said "Oh, you only need 4GB, 8GB is stupid!" and a year later 8GB was basically standard. There are video games set to come out that are projecting regular 8GB requirements, and already games out that will max out 8GB - admittedly some just due to poor optimization (Watch_Dogs). I can routinely run 50% RAM usage in the multitasking I do normally, and then end up maxing out my RAM when running some games as well. I HIGHLY advise 16GB at this juncture. The reason being this: RAM is finicky. You can encounter oddities from using different types, or even just different manufacturing batches of the same make and model. In a year or less, if you find yourself needing the 16GB and have to add it, you will take a hit for doing so. Either having to buy a new 16GB kit to get a matched set, or in having potential issues and less performance from any discrepancies between the original and added sets. It's far simpler and smarter, imo, to just bump to 16GB now and prevent any future issues. Easier to prevent a problem, than to perform cleanup later, and all.

The last thing I'd say is this: The PSU brand you've chosen is a great choice. However, I'm not sure I'd personally go with only 550W. I'm reasonably sure, without going and looking at the draw of each individual component, that you're covered for what you're buying so far. However, probably not by much of a margin. I've probably said it somewhere before on these forums, but a good rule of thumb is to be buying a PSU that is like 50%-75% above the actual draw of your parts. That's varied based on the total draw and all that. You might want a higher percentage of headroom on a very low utilization system just based on the math of it, but if you have a draw near 1KW you probably don't need a 2KW PSU for it, and so on. I would probably suggest you bump up to a 650 or 750 W PSU instead. This makes sure you have room for any future expansion, but largely as a secondary concern. A primary reason for those suggestions are that putting your PSU under full load constantly is far more strenuous on it than keeping it down to 50-65%ish usage. You'll keep your PSU running stronger, longer, that way. That minimizes potential hazards to your system from PSU and power line faults and surges, as well as helps let you spread your components across multiple PSU rails and help keep you from having full rails short out, and so on. It's just a wise decision across the board, hence the general rule of thumb.

Anyway, I hope I've been some help. The parts seem generally like they will perform very well for you, and I think you'll enjoy the power of the new machine. Good luck!

Remove the EVGA graphics card, get a Gigabyte, MSI, or Asus card in that order.I'd personally go for the MSI since it's the best standard sized graphics card.
Asus Maximus VI Hero seems kinda overkill, what's your cooling unit?