I am an independent consultant specializing in Free/Open Source Software. These days, I work primarily with Moodle, Mahara and some projects through my primary employer, VLACS. I have several years of experience with Linux and UNIXes as a software engineer; check out my resume to see my work history. Email me if you are interested in my work.
Windows Vista and Windows 7 are prevented from doing WebDAV with Basic Authentication (http only, without https) unless you update your registry. I accept no liability for this, but download and execute webdavfix.reg and then reboot to make it go. (Oddly enough, Google Chrome adds an extra line to the file. So use Firefox or Internet Explorer or whatever to download.)
I also wrote a Samba-LDAP Installer that I do not recommend using. It is here only for archival purposes.
itunes-encode (right-click and Save As) is a handy little script to help you -- entirely legally -- transform those nice iTunes into even nicer Ogg and FLAC files. Just burn a CD from within iTunes, export a song list (as ascii text), rip the CD with cdparanoia -B, and cat the song list into itunes-encode. (I no longer use this. I just by DRM-free MP3s from amazon.com.)
SimpleSearch is a small PHP script that makes it easy to put a simple search of a single data file on your webpage. If you have a spreadsheet of data that you'd like to let people search, this is perfect for you.
Vim: I wrote a beginner's reference manual and a tutorial for the vim (vi) editor. Sure, it's been done before, but I think my reference and tutorial have a unique combination of comprehensiveness and accessibility to the total beginner.