LinuxQuestions.org - Altering installation order in dual boot

This is somewhat a very widely discussed topic but I haven't really found it discussed this way around: first install fedora and then windows.

First of all I am novice fedora desktop user. I know a little more than an average desktop user due to my debian/slackware experience. Still, there remains some issues and now I want to install windows next to my FC4. This is due to lack of hw-support in linux for wi-fi pcmcia devices. (and no, I will _not_ buy a new device).

While waiting the proper drivers for my TEW-421PC I would still like to be able to use wi-fi. Because I'm too lazy to recompile kernel for the support for ndiswrapper I would like to install windows. The trouble is that my FC4 installation is taking all of my harddrive space and I don't know if it's even possible to install windows after linux and be able to make dual boot work correctly.

Thsi is my 'mount' which is the default FC3(yes, FC3, don't know if they've changed it in FC4 but I did upgrade from FC3 to FC4)
/dev/mapper/VolGroup00-LogVol00 on / type ext3 (rw)
none on /proc type proc (rw)
none on /sys type sysfs (rw)
none on /dev/pts type devpts (rw,gid=5,mode=620)
/dev/hda1 on /boot type ext3 (rw)
none on /dev/shm type tmpfs (rw)
none on /proc/sys/fs/binfmt_misc type binfmt_misc (rw)
sunrpc on /var/lib/nfs/rpc_pipefs type rpc_pipefs (rw)

So what I had in mind was altering my fs so that make a vfat partition of about 5-7GB and then boot and install windows on it hoping that it wouldn't screw up my fedora installation. For some reason I did believe that it would screw it up and I came here for help.