will the NVIDIA ForceWare 167 Beta drivers work with an Inspiron 9300/XPS Gen2?

link: http://www.nvidia.com/object/winxp_notebook_167.51.html

You'd have to download it and look in the inf for your video card's device id or name string. I'm just guessing that it won't. Probably, the only cards they have are the 7800 vanilla and 79xx cards. That's not to say you can't just add your card to the list of supported cards and install the driver. Maybe look over at laptopvideo2go if you don't want to do this work on your own.