I'd look at buying something new. Memory, depending on how much you buy, may be expensive and depending on what the max for your system is, you may not be able to get enough memory in there to really solve your problems. Add the cost of memory (if you have to purchase it), which will probably be $50 - $100 and the cost of WinXP, which will run you $80-$100 and you're at a point where it may not be worth it to try salvaging this machine. You may also run in to additional problems as you buy pieces to get it working, such as a bad disk or other stuff. You might look at getting yourself a new PC. They're not that expensive and should be considerably faster than what you have now and they'll include a fresh copy of Windows
