It seems a little odd to me to have all those parts dying at the same time. Did you have a power surge or did your PSU mess things up?I be taking a small hiatus, as my main system 110% died the other day taking along with it the HDD's Mainboard, CPU, GFX card, well pretty much the whole thing. (Not my week) Hope to have a new system up and running sometime late this weekend and back into Trainz, though due to work it could be longer if I am called away.
Otherwise... it seems like you could you possibly reuse the majority of those parts.