Would this work with shaders?Because i can't have them i have a Crapy chipset graphics card ..So would this work? ATI Radeon HD 2400XT Video Card 256MB DVI PCI Express.Please tell me thanks..

I think that'll work, at least it should work.
Look here for more info about cards that support shaders.

Okay i have looked at that, and i i'll try to get it..It's 22$ So thanks alot man. One more thing,can i just replace my video card or do i need a video card to match the type of Computer i have..?

It needs to match your motherboar socket.
I would suggest getting your old video card out and comparing it with the new one, if they are identical then your mother board will support it.