Depends if you're a serious gamer or not- if you only want to run games like Cricket 2004 at a good resolution, you can grab something cheap for around $100 AUD (which will still be many times better than what you have)- if you are looking to play games like Half Life 2 then a good one will be around $3-400 AUDMr. P said:what is the cost of a better graphics card (ie much better)
Do you know if your computer has an AGP slot or not? If it doesn't then you won't be able to upgrade to any really good graphics card.
btw, the graphics card that you have now is integrated into the computer's motherboard, meaning that it steals 32MB of your RAM- you probably actually have 512MB rather than 480