I found my way here via the recent /. article
http://ask.slashdot.org/article.pl?sid=05/08/02/165231. I look forward to trying out the UBCD.
Anway, at
http://www.ultimatebootcd.com/, you have this link for Lucifer:
http://petertodd.ca/lucifer.php; that link no longer works, but you could replace it with
http://web.archive.org/web/20040604041048/http://petertodd.ca/lucifer.php
By the way, Memtest86+ has a new version (since they spit out new versions quite frequently, you're probably not surprised).
-scott