Thought I'd share these:

Tip: When playing a video in Quicktime type control (or apple) + J, hit a track, and you'll see a set of menus you may not have known were available...

MPEG Streamclip video converter for Mac and Windows (http://www.squared5.com/)

JW FLV Media Player (http://www.longtailvideo.com/players/jw-flv-player/)

Free Video Converter That Does It All (http://vidlivery.com/2008/nov/16/tools/free-video-converter-does-it-all)

Quick Tip: Create A Video Gallery With Thickbox (http://vidlivery.com/2008/nov/06/tutorials/quick-tip-create-video-gallery-thickbox)

Youtube 720 HD & HQ Embed Code Generator (http://www.sweetheartfilms.com/YouTube_Embed_Code_Generator.html)

And of course my Embed Tests linked to in my signature below...