My uncle was having some speed issues with his Dell 8250(533Mhz). I've done all the software tweaks to speed thing up and this has helped to a certain extent. It currently has 2x256Mb RAM and i suggested an upgrade to give the system a bit more oomph. The problem is that is seems to use PC1066 Rambus RAM which is incredibly expensive. Crucial don't sell it and Dell want an absolute fortune to upgrade to even 1Gb. Does anyone have any experience of similar Dell systems ? and can the memory be replaced with PC3200 for example ?