I now understand why the doul-layer burners that I saw at CES were such a big deal...
Thats why I am waiting. I got a SuperDrive equuiped PowerBook (aka, 2x DVD-R), and have used it once to help a fried create a DVD archive of some TV show.

Most of what I want to archive ends up coming out on DVD anyhow. So for me, it's more for data use, and having almost 9gb on a single disc will be handy.