and my power supply already runs hot alot. perhaps I should upgrade that? its already 5 years old I think. would I need a new case to get a bigger power supply? Right now the one I have is a 350W.
Make this a top priority!
If you are concerned about the power supply, you might want to have it looked at. If its a problem, you should have it replaced. Its cheaper to replace a power supply now, than it is to replace a whole computer later, because the power supply shorted everything out.
AMD 64 +3000
2.00 GHz 1GB RAM
Radeon 9600 xt 128 I believe these are only AGP.
450W PS (maybe 400W, cant remember)
I've got a KV8 motherboard but im not sure if its got a PCI express or not.
Hmm... I'm not sure how long you will be able to keep upgrading this thing one part at a time. Some parts require that you replace other parts as well. In this case, if you replace the motherboard, you're going to have to replace the proccessor, video card (which you were going to anyways), and maybe memory. Please note, its better to get a video card that supports PCI-E x16, instead of AGP (Its obsolete now).
I also would like to upgrade some other areas of this rapidly aging machine.
Lucky for you, I'm currently making a draft for a new computer for a friend. Here are the core components.
Motherboard: Asus M2N-E (You're going to need a new proccessor and video card)
Processor: AMD Athlon 64 x2 4200+
Ram: Kingston 1 GB (2x512MB) DDR 2 667 MHz (You might be able to keep your old memory)
Video Card: ATI Radeon x1600 PCI-E x16
(I can usually only afford to upgrade one thing a year)
The items listed above were selected due to a good balance between performance and price. That said, I'm not sure if you can keep the memory between the upgrade (You didn't list its speed). Once your computer has been upgraded, it should remain upgradeable for a long time after that.
Would it be worth it to get a duel core Proccessor?
Dark Avatar expansion can take advantage of a dual core proccessor. It should kick in automatically when you play the game. So, if that is reason enough, then go for it. The proccessor in the list is dual core if you are wondering.
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P.S. If you have any further questions, feel free to ask. I hope I was of help.
P.S.S. Please list your memory speed.