Mounting over Ethernet

Is there any way to mount an external files system over ethernet with the PP? I can use sshfs to mount the DT as an external file system onto my mac but as far as i can tell the driver for SSHFS only works with fuse which requires you not be root and also require a kernel level driver. All the shared file systems I looked recently looked as though they needed kernel level support. It would be really handy for a few reasons if I could mount a filesystem on my mac from the pp. It would make a very easy way to share data out of the PP plus it would also provide a means of extending the storage space available to the pp. Right now with SSHFS I can get my mac to see the pp filesystem but i can't get the pp to see the mac filesystem.