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).