10k$ ....
4xTITANS Z for 6k$ (there are 10 of 780 6GB in Warsaw now but the prices are 750$ + shipment to US makes it unattractive).
1.5$ for TITAN Z is almost same as 2x750$ Titan Black which is a great deal. And you can fit 4 of them in one mobo.
They also have reference coolers which dissipate heat outside a case which is very important for air cooling, unless you go with water cooling or a self-built coin mining case.
2x1200W or 2x1500W 600$ (corsair ax1200i for 600$ for 2x)
GIGABYTE X99 UD3 or UD4 250$ - no need to pay 530$ for Asus X99 WS, save 300$ for e.g., a case.
http://www.gigabyte.com/products/produc ... id=5138#ov
Personally I have Asus WS series, but if I were to buy a new, these two are best value for money.
I had Gigabyte UD4 on p67 and I miss is it (my opinion, but there are also some voices on this forum confirming that with gigabyte they had no problems contrary to asus). I had no problems for 3 years with p67 UD4.
Case-labs - SMA8, SMH10, STH10, TH10A, for 600$ - the best case on the planet Earth. Literally, no other case is even close to its quality. I had a server case, 100% alloy Lian Li X2000 and compared to CaseLabs it's night and day difference. I also built a 4xTITANs on Corsair 900D - its ok, but just OK. And when you just touch CaseLabs, just touch, you'll never want to give it away. Man, I am not exaggerating. You can build a monster on it, on air, on water...
CPU 5930K 600$ or 5820K 390$.
So for now we have about 8k and you have 8 gpus! And now you can expand it to the best Octane Render machine - water cool'em.
4xEK waterblocks 500$, 3x560 Rads 500$, Dual D5+top+res 300$, Fittings....
If you overclock it on water - like I did with my rig - you'll have 23 040 cuda cores running at 1100-1200mhz on core on safe 1.2V and you'll squeeze 400ms/s in DL in octane. And it will be quiet and cool...
