Richard,
I can only answer few questions.

d) Is this cinematrix board any good ? (iDVDo springs to mind here too..)

The Dutch modifier for Cinematrix is a friend of mine. You can go to him and see a toshiba 500 with the modification on a Sony G70 CRT projector. That has DVD-A (analogue outputs) http://www.itccomp.nl/htwebf/ITCHT/index.htm

f) Who is using a CRT, again same as above....
Sony D50, draper clarion M2500 4:3 100" screen (not buy a M2500 screen, for me it does not work at all) viewing distance is 3 meters.

j) Concerned about the refresh rates and frequency, is flicker visible with a CRT. I remember I could not stand a CRT computer monitor. Even at 75hz the flicker drives me nuts, so I bought a LCD display.

I use a HTPC. Run 72 Hz refresh rate. No flicker, proper picture for NTSC discs. HTPC does work, but is much more trouble than a progressive DVD player. Cinematrix their PSM-2 will have 120 Hz for NTSC, and 100 Hz for PAL. You need a good projector for these refresh rates on higher resolutions.. (expansive CRT's...)

k) When using the SVGA input on a projector, does that allow you to use the keystone correction facility, because usually this is only available in data mode, not video, but when using the SVGA input, the projector functions as a data projector. Any thoughts on this ? I want to mount the projector as high as possible, so keystone would make this easier.

With a CRT keystone is/can be corrected for all modes, does not matter what input. This is a disadvantage too, you must configure every input resolution/scan frequncy seperate.

Jaco

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