Yup, using the ProHD but will be beta testing their new RadianceXG as soon as it's available.

Connections are as follows:

Meridian 800 - SDI
Tosh HD-DVD - HDMI->DVI (YCbCr 4:2:2 setting)
Sony Blu-Ray - HDMI->DVI (YCbCr 4:2:2 setting)
D-Theater DVHS - component analog

The Lumagen doesn't handle video deinterlacing very well for those who might be interested in it, but for film it is perfect. The RadianceXG should solve the video handling aspects.

Mark