I can do no more than re-iterate what has been said before 1. As much RAM as you can shoehorn into the system. DDR works faster 2. A 1 Gb permanent swapfile (preferably on a separate hard disk) 3. If you are going for the DAZ studio instead / with either poser 4 or 5 a good but not cutting edge video card. Poser is CPU and RAM/memory intensive so the trick is to maximise the memory bus - look for a cpu's with large on board caches, large FSB's and match the DDR ram speeds to the motherboard.