Mac Address Book on Windows XP

I have 2 mac at home and a work computer (Dell running XP).

On my personal mac computers, my address book is full of 850+ contacts (business, friend, family, etc) and I would like to know if there is a way for me to access them from my work computer (running XP).

I don't want mobile me (too $$$) but I was looking forward to having mac address book software compatible with Windows. Is it possible?

Thanks

Matt