Well, as for a computer upgrade, if i were you i'd go to localcomputer store and ask them to assemble system unit with their cheapest parts, i think it would cost about 250 USD, it would be 20 times faster then Ron's current computer and ypu will have full warranty and it would be compatible for later upgrade if needed, because the main problem of bying an old used computer, that you can't upgrade it, you'l have to sell it and buy a new one and it is possible, that noone will want to buy such an old computer you'l have.