Something I do frequently for this sort of thing is just to have an ftp server running on my machine. If you are running SuSE (I assume you are, given the location of the post!), try out package pure-ftpd; this is a nice lightweight and secure ftp deamon. I have been using it for years with SuSE - it is solid.
Having set this up, make sure to allow ftp access in the firewall. For this, use the firewall configuration from YaST and its "Advanced" function - allow port 21 for TCP, which is the normal ftp port.
Now, very simply, the other machine (assuming it is linux) can use Midnight Commander to transfer files back and forth. Midnight Commander has a wonderful ftp support mechanism, which hides all the underlying mechanics, and makes the other machine look simply another directory. You can navigate around, transfer files, do everything you can do with a local directory. It is the BEST ftp client I have ever used.
To use this, open midnight commander ("mc" on most systems) and enter the following:
Of course, put in the intended userid, password and hostname in the above, not the words I have used. Once you have this all working, you can just add a bookmark (C-x h) to make access simple.
I transfer files between two linux boxes this way all the time. VERY, very nice. And, very secure. I only start pure-ftpd when I need to do a transfer, so the service is generally not there for hackers to exploit. In the same vein, I only allow port 21 in the firewall when I want to transfer. You can decide to run pure-ftpd all the time, and leave port 21 open all the time, if you wish. You will need to decide how paranoid you are!
If you have any troubles with this, just post back.