SecIDS seems to be working ok ... but it is still based on 2.4.9 + lids + grsecurity. I wonder when the guys working on LIDS put out a version for 2.4.11 ... As soon as lids/rsbac + grsecurity are supported on 2.4.11 I'll put a new secos patch on my site.
Last monday I gave a presentation together with adulau on "forensic analysis" at the clussil. You can find his slides on http://www.foo.be/gt/forensic/ and mine on http://www.fruru.com/forensic-20011008. Both presentations are in french (or at least some of it is...)
Future topics of interest might include some wireless stuff or secured operating systems.