Keep in mind the nMPro is the previous gen Ivy E platform and chips. That also means DDR3 instead of DDR4. The Dual GPU's in the nMPro wont help you at all with AE or C4D. Crossfire brings nothing of value to any Adobe application. The X79 platform is the previous gen ie Ivy E to the X99 platform. If you are looking to go that route the new X99 Haswell E is what you want instead.
Eric
ADK