Best way to update graphics on five-year-old IBM desktop

I am looking for a way to bring an old IBM desktop machine that I built Into more sutible working conditions. Does any one have any Ideas on how I can update the innerds of my computer?
I know this very vauge but I dont have the computer with me now and am looking to stock up on what I need (Info and parts) Before I get back to it.
\Thanks?
 
We heed to know the components you have before we can recommend upgrades. What is the IBM model number - or better a link to the IBM spec list for it - and what new components did you put in?

Also, what is your budget and how do you use the PC?

For a starter on learning about video card upgrades, I recommend this site:

http://www.upgradevideocards.com/

Pay particular attention to the criteria page that addresses system constraints in the upgrade process - and helps you define your wants and needs in a way that is useful:

http://www.upgradevideocards.com/criteria.html
 
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