Back up your home system to a remove server

The data center machine is a 1U Tyan server with 4x320GB drives in Linux SW RAID 5. It is also running Ubuntu 5.10 server. (Getting Ubuntu installed on a RAID5 drive array was a challenge. I don't remember the exact steps I took or I would document them here.) The cost of doing this can be high unless you have a friend that can get you hooked up. Even if you can't, it might be worthwhile. I'm backing up to this every night over my cable modem. The cable modem upload speed is okay since I upgraded to Comcast's higher level of service. I now have ~768kbps up.