Convert from just about anything to anything.
Enter your email address and receive a link to the converted file. Can convert YouTube videos!
Also try:
Converts in the browser while you wait!
Or this one,
http://www.mediaconverter.org/
Just need a pdf? Try:
Converts Works, WordPerfect and Publisher files to PDF. Files are limited to 1MB
Convenient online application for converting YouTube flash video to MP3 audio. Fast, free, and requires no signup.
or
or
or
or
http://converttube.com (hmm... strangely similar?)
Download from Google, YouTube, iFilm, Putfile, Metacafe, DailyMotion (have you heard of all of these??) -- nice bookmarklet for your browser. When you find a video, just click to download.
and
Bonus: Here is a link to the pdf that has screen-shots:
http://www.evalamar.com/documents/Vixy_download.pdf
TubeTV
http://www.chimoosoft.com/products/tubetv/
TubeTV is a freeware program for Mac OS X Tiger, Leopard, and above which enables you to search for, save, and convert YouTube and many other flash videos to a format suitable for playback on your favorite devices.
Microsoft Office OpenXML Converter for Mac (for docx or pptx files)
http://www.microsoft.com/mac/downloads.mspx