I think that this point can't go diminished:

> The caveat (beyond pricing and size of the box) with any vendor (even 
> the giant ones like Dell) are reliability and warranty support, so 

These systems are in high heat environments.  We picked components when
building our reference implementation machines from as reliable of
sources as possible, but one of the more generic components (the power
supply wall wart) turned out to be a weak link for everyone.  Most
unpleasant to have a nice system throughout and then stuck with a power
adaptor that was unreliable.

Also, Stuart, note that epiphan might be able to make internal cards
that are part of their faster line, I'm not sure.  So the regular
pci2vga can't grab 30fps at high framerates, but some of their others
can.

Finally, consider that for the reference implementation you should have
a dscalar in front of the system in order to make sure resolution
changes don't effect the capture.  There is some work to diminish this,
but I don't have details on how well it has been tested, so we have
continued to use scalars.  Another $250 price and a little more room
required in the cabinet.

Chris
-- 
Christopher Brooks, BSc, MSc
ARIES Laboratory, University of Saskatchewan

Web: http://www.cs.usask.ca/~cab938
Phone: 1.306.966.1442
Mail: Advanced Research in Intelligent Educational Systems Laboratory
     Department of Computer Science
     University of Saskatchewan
     176 Thorvaldson Building
     110 Science Place
     Saskatoon, SK
     S7N 5C9
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