Typical users seeking buying advice typically fail to provide 2 critical pieces of information. You only 1/2 way screwed up! :grin1: You provided you budget and that is great! But you failed to state the primary purpose for this system. Are you building a general purpose PC for school or work? Gaming rig? Graphics or CAD/CAE "workstation"?
I don't see a HD listed for mass storage. You may not need one.
I also don't see an OS listed. Note you cannot use an OEM license from a previous computer on a new computer. OEM Windows licenses come in either 32-bit or 64-bit so you must choose at time of purchase. With more than 4Gb of RAM, make sure you buy 64-bit. With OEM licenses, the builder (in this case, you!) are responsible for Windows tech support for 1 year.
Alternatively, you can buy the more expensive full retail license which comes with both 32-bit and 64-bit installation disks in the same box (though you can only use one or the other - not both). And with the retail license, Microsoft is responsible for tech support for 1 year.
Or, you can install one of the many free and capable versions of Linux.
Note too that i7 CPU comes packaged with an OEM supplied cooler, and is warrantied for 3 years as "a unit". As "a unit" they are expected to be used together and consequently, the use of aftermarket coolers voids the warranty. If not a concern, no problem, but it is something folks need to be aware of. Note both AMD and Intel sell many of their processors as OEMs that don't come with a supplied cooler. So the use of an aftermarket cooler is required. These CPUs cost a little less, but are warrantied for just 1 year too.
That said, contrary to old rumors and false information, the OEM supplied coolers are excellent coolers, fully capable of providing adequate cooling, even with mild to moderate overclocking. Remember, it is the case's responsibility to provide a sufficient supply of cool air flowing through the case to keep the innards cool. The CPU fan need only toss the CPU's heat up into that flow. Current OEMs coolers are pretty quiet too - especially compared to OEMs from yesteryear. But note noise suppression is a case function too.
Finally, there are many who feel the use of two graphics cards (or a dual GPU card) in SLI or Crossfire is more problematic than their worth - in terms of returned performance. Also, there is a phenomenon known as
Micro-stuttering - The Dark Secret of SLI and Crossfire. Consequently many hard core gamers have decided to switch to one high-performance graphics card instead of two, and are happy they did. Single GPU systems don't suffer from this defect and consequently often offer much smoother animations compared to a SLI/Crossfire setup using two of the same cards.
So instead of spending $700 on two cards, you might consider spending less for one. Other advantages to this is significantly less power consumption, less heat generation, and less fan noise.
When you have a spare 16 minutes, see
Is It Worth It to Run Two Graphics Cards in My Gaming PC?
