Ok guys....and gals if any are out there. 
My next upgrade is gonna be to get rid of this Nvidia Geforce4 MX 420 video card, according to the system info it is a PCI card, and the way I understand it there are PCI, and AGP cards, which is best? And can I use an AGP card or am I stuck with using a PCI card?

My computer is a Dell Dimension 8300, 2.6 Ghz Pentium 4, which brings up another question, can I replace the video card in it? I know some computers the video cards are integrated into the motherboard 

If it can be replaced, give me some ideas of what would be good video cards. Also for right now, and the money I will be able to spend I am probably looking at only a 128 MB card, which should be better than this 64MB thing I have now. 

Sorry for all the questions, and everything, but I am not really as computer savvy as some people, although I am learning a lot, and I have found the people here to be most helpful 

Thanx in advance
And have a MERRY CHRISTMAS, and a HAPPY NEW YEAR 

Thanks for the info, I will check that card out