Yes, I know its expensive and somewhat outdated but my Dell 8250 uses it. Where can I get hold of RD Memory at a reasonable price - neither Crucial or Kingston stock it anymore. Dell themselves quote in the Region of £460 inc vat and del.
Well, it appears the least complicated short term option was eBay - never used it before, really! And that is the option I have taken, I think successfully. However, dan11 that was a brilliant suggestion and I have not given up on that idea for the medium term - seems like a good option to further expand my system pending the release of Longhorn (or whatever it is called) and those twin processor thingamajigs! My system, driven by steam-power is needing an overhaul before that eventuality.
A sincere thank you to your both for your most informed and constructive help. Glad I found this message board.