Looking at it on the ATI site, X300 appears to be more of an office version card.. Doesnt really mention anything about gaming performance in the entire ad. STL pilot had recommended the ATI 9700 to me as a PCI option but although listed as a PCI card it actually fits into the AGP slot. Why do you need to go PCI?, they are supposedly a little slower.
Quoted from QA section of ATI website..
Q9: Is there a PCI version of RADEON® 9700 and/or RADEON® 9500 Series graphics cards?
A9: RADEON® 9700 and RADEON® 9500 Series graphics cards are only available in the Universal AGP 3.0 bus configuration (2X/4X/8X).
Heres the actual site
[link=http://www.ati.com/products/radeon9500/radeon9500pro/faq.html#9]Q&A Section at ATI,, cclick on the question below[/link]
Heres the X300
[link=http://www.ati.com/products/radeonx300/RADEONX300_Corporate.pdf]ATI x300 SE Website[/link]