I’ve mentioned Plex before, a branch of the XBMC software on Macintosh. It’s my media centre of choice, running on the Home Theatre hackintosh I put together a few months ago.
Released a couple of days ago is Plex V8, first release of the new stable branch following on from the development seven series. Download the Mac OS Leopard only dmg , release notes and source code from here. There are several new features and lots of fixes so it’s worth giving Plex a try.