I added these to the bsd section before I saw this part of the forum (feel free to remove the messages). But you might want to add these:
live os:
http://www.freesbie.org/ 565MB
slashdotted can't check anymore
http://www.livebsd.com/ 533 MB
mini cd (210 MB) live os:
http://bsdeviant.unixpunx.org/ 210MB