1. myTV – An easy to use MCML-based TV archiving plug-in for Vista Media Center.  You can grab the trial here and if you like it buy it here for only $20.
2. Vista4Cast – Add weather embedded in your Start Menu, as well as a plug-in version.  Not nearly as polished as other plug-ins like Big Screen Weather v2, but the Start Menu weather is very cool.
3. MC Organizer – MCML plug-in that lets you view or play movies stored in Movie Collector software.
4. LEDSdriver – Want your Media Center to have a currently recording LED like your cool VCR does?  That’s exactly what this plug-in allows for.
5. VideoReDo – By far the best program for editing DVR-MS files.  You can also VOB files to DVR-MS for easy streaming to your Media Center Extender.

Bonus: Big Screen Movies – Now, Niall has been keeping this under wraps but here is what we are going to do.  Everyone is going to head over to Big Screen Global and pick up one or all of the Big Screen Suite of applications (Big Screen Headlines v2, Big Screen Photos v2, Big Screen Weather v2).  Maybe then we can convince Niall to release Big Screen Movies.