I currently am using OS X, but I have a machine in my room running XP and I want to create a DOS boot disk with the files it has that has capability with either a Broadcom wireless card or a Netgear WG111v2 USB. I am currently doing this with 98SE DOS files and I wanted more tools with more compatibility. Any ideas? Sorry, not exactly about Windows.

It is unlikely you will be able to do this because all of the new hardware is Plug-N-Play. Very few of the newer network cards offer DOS compatible drivers. And if they did, the files are so large now that you can not fit the drivers and TCP/IP stack onto a single boot disk.

Some network cards offer a Boot to LAN capability in which you can start the machine up and connect to network.

Take a look at Windows PE 2.0. The PE stands for Preinstallation Environment. You can boot to Windows XP and run the OS from a CD. It is often used for diagnostics and recovery purposes. I have a custom CD with some programs installed into it as well.