Samba sharing a FAT32 external HD

[Ben Novack]

I've got an external USB2 hard drive formatted as FAT32 that contains,
among other things, all of my music; I want the other systems on my
network (specifically, a Mac PowerBook) to have unrestricted
read/write access to it. Sharing my home directory works fine; the
external drive shows up when browsing the network, but neither XP nor
the PB can actually view it. Is there a way to get it properly shared
without reformatting it into something more Unixy - something I very
much want to avoid, since I frequently use it on XP systems?

(The HD's plugged into a Hoary desktop, for the record.)

Thanks,

---Ben