Here's what I was able to come up with:
Core i5-2500k: http://www.newegg.com/Product/Product.aspx?Item=N82E16819115072&Tpk=2500k
Sapphire Radeon HD 6950: http://www.newegg.com/Product/Product.aspx?Item=N82E16814102987
Graphite 600T: http://www.corsair.com/pc-cases/graphite-series-pc-case/graphite-series-600t.html
Seasonic 750W: http://www.newegg.com/Product/Product.aspx?Item=N82E16817151107
8 gigs Kingston HyperX Blu 1600MHz: http://www.newegg.com/Product/Product.aspx?Item=N82E16820104262
And slap all that on an ASUS P8Z77-V LX: http://www.newegg.com/Product/Product.aspx?Item=N82E16813131824&Tpk=Asus%20P8Z77-V%20LX
Total worth: $949.94. You still have about $50 for a DVD reader, but I'm not very good with those so I'll leave that to you.
Now, the 2500k is a bit last-year, but it's still awesome. The 6950 is beastly(not as much as a 680 or 7970, of course) and you'll be able to put another one in down the road, if you feel the need. The mobo has full CrossFireX support, up to 4 cards. The PSU should be able to power 2 6950, I'm not sure, but if you go with more than 2 you'll need to upgrade it. The case has good airflow and "fantastic cooling from dual 200mm white LED fans". The memory is pretty self-explanatory: 8 gigs of DDR3 @1600MHz. What more do you need.
I think this system will work great for you, especially for $1000.
NOTE: The motherboard has a z77 chipset, so you won't be able to unlock the GPU into a 6970.