what I have done is I have a linux computer (any debian-based distribution that uses apt for package distribution will make this really easy) with netatalk installed.

Here's what I did:

that creates a server that your macbook pro and your LC will be able to see with the hostname of your linux box. just log into it with your linux username/password and it gives you access to your homedir. (you don't need to connect your OS X machine to it with appletalk though, you can use sftp or smb or whatever other connection method you might like)

How do you hook the LC up to it?

The best option is to get an LCPDS ethernet card, but in my setup, I'm using a PowerBook 180 which doesn't have ethernet. Anyway, I'm using an ethertalk to localtalk converter on that machine. on one end it has ethernet, and on the other end it has a phonenet connector that plugs into the end of a normal phonenet ring.