I got the 2gig ram in the end btw... Has helped a bit definitely, but my main problem at the moment is the limited space on my main drive - just need to get my act together and tranfer / backup a lot of stuff to my externals rather than go out and take more photos ;)

Thanks for the help in this thread guys - much appreciated. :)

"In every colour, there's the light.
In every stone sleeps a crystal.
Remember the Shaman, when he used to say:
Man is the dream of the Dolphin"

Rich Meadows Photography