Re: mplayer vdpau
The git repo now uses the frame dropping/timing functionality by default, so playback on low-FPS devices should work much better and playback speed adjustments are not limited by display frame rate. The recent changes have also improved performance especially when using hardware decoding together with the heavier deinterlacing modes. Some samples show about 50% improved performance when using "-vc ffh264vpdau -vo vdpau:deint=4" on my 9500 GT; the amount of performance improvement will probably vary depending on card and the relative speeds it has for decoding and filtering.
The repository still supports the libvdpau version from 185 series drivers in case anyone here has not upgraded (of course the new features in 190.x drivers will not be supported if you build MPlayer against the older library version).
To build do "git clone git://repo.or.cz/mplayer-build.git" and then follow the README.