[mythtv-users] latest recommendation for VDPAU PCI card

[f-myth-users at media.mit.edu]

    > Date: Fri, 30 Oct 2009 10:34:30 -0400
    > From: Calvin Harrigan <charriglists at bellsouth.net>

    > You can get a 9500GT without a fan.  The one I have has a huge heatsink 
    > and keeps pretty cool. There is a 512 and 1GB version.

    > http://www.newegg.com/Product/Product.aspx?Item=N82E16814187035
    > http://www.newegg.com/Product/Product.aspx?Item=N82E16814187034

These cards claim to have a PCI Express 2.0 x16 interface; an MSI
K9N2G Neo motherboard I'm considering auditioning one in only has
the 1.0 interface (half the speed).  None of the Newegg reviews
talk about this; does anyone have any idea whether the speed cut
will matter?

(My use case is [right now] to take SD recordings from PVR-250 inputs,
transcode to H.264 [entirely to save 2-3x of the storage], and then
play back onto an -interlaced- NTSC Sony CRT via the S-Video output;
I've been left somewhat confused about whether an interlaced source to
an interlaced CRT nonetheless needs a deinterlacer if I've transcoded
through H.264.  If it does, I'd want to use the best deinterlacer I
can.  I'd be willing to consider a different nVidia card (one that can
only hack the best deinterlacers at SD resolutions) for now if that
makes more sense, since it will be quite a while [if ever] before I
ever have either HD sources or HD outputs [well, I guess a computer
screen might count as the latter].  My highest priorities are quality
of output to an interlaced CRT, so I can't cope with VGA or HDMI,
don't want any motion artifacts, etc.)

Any suggestions?  Thanks!

P.S.  I note from the reviews that the 512meg card used to have a
really studly heatsink, different from the 1G card (also somewhat
studly), but apparently both cards now share a wimpier heatsink.
May or may not be a problem.  Newegg also seems to be carrying
both memory sizes for the same price right now, so if this card
makes sense at all, I may go for the 1G for futureproofing.