pbhj's Journal: ntfs data recovery

http://foremost.sourceforge.net/ - purports to be developed by US mmilitary, recovers specified filetypes, runs under linux

http://www.sleuthkit.org/ - low level data analysis

http://jbj.rapanden.dk/magicrescue/ - recovers first chunks of files that it can recover, ie limited to at most around 50MB, looks for file signature chunks, *nix app

http://www.inside-security.de/applicationlist.html which is part of UBCD now