For those of you looking for an automated remastering solution, OnebaseGo might work for you.

http://www.ibiblio.org/onebase/

It allows you to "dock" the live CD on your hard drive, then you can add/remove apps (via command line interface or a "click-run" web page). Once you undock it, it will automatically create the ISO for you. I haven't tested it myself yet, but it looks promising. Although I haven't found any reference to it on the website, this looks like it's based on Knoppix 3.1.

- PA