A couple of useful links and tips...
 

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

JW FLV Media Player

Free Video Converter That Does It All

Quick Tip: Create A Video Gallery With Thickbox

Youtube 720 HD & HQ Embed Code Generator

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