Thanks chaps for the good information, here are some answers to questions.
Below are two shots of task manager with NC running the graph was taken when NC is converting to TIFF and passing to CS. I dont think I have a memory issue more disk as 300MB is VM.
Computer Spec
MSI motherboard K7N2 Delta, spec here
http://www.msicomputer.co.uk/Product...3422&cat_id=77
Two Seagate Barracuda 120GB HDD's as PM and SM, OS and VM on PM whilst Nikon temp folder on SM.
AMD 2600+ Athlon XP CPU
Nvidia 64M graphics
XP pro SP2
Nikon Capture 4.40
PM is 85% free
SM is 20% free
Motherboard does support SATA.
What speed increase should I expect by utilising SATA disks?