why not upgrade? if you have the money, a few hundred will do for the upgrade, better than buying a new one which will end up costing a few thousands. If you hate to get rid, you may prefer to sell to a second hand goods shop? just some suggestions.
the comp in my house which was bought in 5 years ago was already spoiled, which costed us $2000plus. And it was bought from our uncle. window 95, screen the most 800x600, colour 16bit.
now, the current one is working for us for less than a year, better than the last time, with window XP pro, screen resolution 1024x768, 32 bits color, it costs us $600 for CPU, keyboard, speakers, monitor. Big different?
(^_^)