Well theres lots of options really. The first one that comes to mind if ftp.. Just setup a sever on one machine then connect to the other with login/password and bam. Theres lots of simple windows ftp servers like g6/raiden/servu theres tons. Linux is also the same but I would use VSFTPD (great stuff). You said your laptop is an IBM, just go download the "IBM Data Transfer" software....I dont know much about it im installing now and will repost if its any good. My 3rd option on this list would be simple SMB filesharing with netbios. Or in other words windows file sharing with the "my network places." These are just some simple options. Hope this helps some.
Anal nerd who can\'t spell.