Live CD, i knew I forgot to post something....
http://www.sussdorff.de/oacs5dot2v2.iso
This is the OpenACS Knoppix run out of the box, should not use 512MB of RAM (but might), .LRN 2.0 enabled, Jabber running demo live CD.
We have to work a little bit more on it, but are keen to collect feedback and if you want to get your custom made CD don't hesitate to contact Björn Kiesbye (the author), or myself.