Thank you for the clarification robsb. I built this computer several years ago and used a motherboard and processor that runs on 32 bit. At the time 64 bit was not that common and when it comes time to build another computer, it will certainly be a 64 bit processor.
I usually do not have many background programs running and normally pictures taken with my D700 or my D300s zip through the 'save' action. However, recently I got a D800 and those pics t-a-k-e f-o-r-e-v-e-r to save. That is why I wish I now had 64 bit. Perry