Well we are up against the wall reguardles,s 32 bit machines can only handle 4 gig mem including swap file. We are already hitting that limit. The swap files are growing that big on some renders. 64 bit will solve that but in the mean time there is a good opertunity here to buld a 32 bit cluster and wait for the programs and stuff to catch up in the 64 bit world. Time it's ready it will be way cheaper than it is right now. Hey now if your really on the ball and look at the tutorials I've wrote then there is a solution there to get round the 4 gig single render problem. Hey it's years old but it's more important than ever. No single computer can solve this 4 gig problem unless it's 64 bit or you read my tutorials. Hint: Read between the lines on the tutorial.... See the Mighty Pete always thinking of the future.