I've been asked to make a setup for new workstations.
So here it is, if someone has any good ideas regarding components, please let me know.
There is still a question of re-using the old videocards (3 x Quadro FX 1800 and 3 x Quadro FX 3450/4000 SDI ) or buy new ones.
The new ones will probably be the AMD V5900.
The performance of the already build workstation with 1866MHz memory and AMD V5900 card is:
(system is running Windows 7 64bit with Solidworks 2011, E-PDM, Autocad, and the standards programs people use)