Have a good look at the fitness for the future in your design. I used to run the stock diamondd on an old Asus netbook with 750MB of RAM and tuned slackware. A resync has become close to impossible now for the poor little thing. Maybe some development on the software end can help here? Aside from it being a memory hog, I noticed it had to plough through recent blocks over and over while it was still a year away from the top.