While I agree with all of your observations re: the ability to multitask other applications, the actual rendering times for Poser will not be significantly affected. A person would be better off purchasing a faster processor and faster memory than going for a dually system for use with Poser. Dual motherboards and processors are SIGNIFICANTLY more expensive than any benefit they will provide for Poser alone. As rDogg mentions just P5, I say he is better off going for the faster single processor/memory. (trying to see how many times I can use significantly in a post, and am now wondering if I spelled that correctly.... i think it is time for bed.)