[TriLUG] FOSS tape backup software?

[Magnus]

The home LAN is in a cycle of growth again and I've got to do something 
more reasonable in the way of backups than shuffling an external USB 
hard disk around.  I've got a DLT drive strapped to an old Sun box 
running (effectively) Fedora Core 3 (it's actually Aurora SPARC Linux 2) 
to share with the rest of my LAN.

I'm aware of less sophisticated tools like dump, tar, etc. that work 
perfectly fine but don't have some of the bells & whistles you'd expect 
from tape backup software.

Moving up the food chain I'm aware of AMANDA but I've not heard anyone 
being particularly enthused with it.  Does anyone have other FOSS 
recommendations for something like this?