Thanks Patrick your words have been heeded. Currently I'm looking at intel Core i7 3770k with a Nvidia Quadro FX4000 graphix card and 16Gigs of RAM, and I'm looking into the solid state drives, anyone tried a similar system. I'm sure it will be much better than my current system W3503@ 2.4GHZ with NVidea Quadro FX580, which crashes often with large assemblies and is extremely slow.