Broken computer

Well... my computer broke because of a power surge. It seems as though the MB was fried, so I simply replaced it with the old motherboard and put in a sound card I had lying around. I realized however that, this machine is on it's last legs. I uses Socket 423, which no one makes anymore and it also uses RAMBUS memory which was fast back in the day, but is not relatively slow when compared to more recent technologies and is also hideously expensive. I've decided to get a new machine.