I need to build up a new workstation. My old dual core, dual processor Opteron is way too slow. I want at least 8 processors and 16 GB of RAM. Applications are mostly high end, multithreaded engineering and physics simulations that take days on current system. Looks like new Intel 7560 Xeon processor would be perfect, but I don't see anyone making a motherboard for it. Any suggestions on next fastest processor/motherboard combination?