Okay first off, here's something COOL from "Sparkle"

The first PCI-E / PCI-X 1X GeForce card - cool for HTPC users!

http://www.3dfxzone.it/news/puntatore.php?uid=8819

Not the first one, but it's newer than:

http://www.tweaktown.com/reviews/1045/pci_e_x1_graphics_performance_with_galaxy_geforce_7300gt/

Now a short disclaimer...

!!!WARNING!!! The following question is about PCI cards and NOT PCI-E/PCI-X cards. !!!WARNING!!!

Okay, now with that out of the way...

What is the newest PCI graphics card based on either nVidia or ATI chipsets?

I know that the last (and possibly best available) ATI PCI card was the 256MB ATI Radeon 9250 PCI ...

http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=370091068637&fromMakeTrack=true&ssPageName=VIP:Watchlink:middle:uk

As far as I know the GeForce 6 6200 PCI 256MB DDR is the best available nVidia based solution from PNY.

http://cgi.ebay.co.uk/Latest-PNY-GeForce-6-6200-PCI-256MB-DDR-VGA-DVI-TV-out_W0QQitemZ370098037354QQcmdZViewItem?hash=item370098037354&_trkparms=72%3A1301|39%3A1|66%3A2|65%3A12|240%3A1318&_trksid=p3286.c0.m14

I'm not too knowledgeable on nVidia cards so I could be wrong...

If anyone knows about better solutions please post about it.

BTW - it's for a mini ITX media centre I'm building...it has no AGP or PCI-E/PCI-X slots.

Sparkle SF-PC85GT256U2 Passive (8500 GT)

http://www.sparkle.com.tw/product_detail.asp?id=69&sub_id=160

Yah, I should have Googled more...

Apparently Gigabyte had the same idea:

http://cgi.ebay.com/Gigabyte-8500-GT-512-MB-fanless-PCI-Media-Center-HTPC_W0QQitemZ170271374553QQcmdZViewItem?hash=item170271374553&_trkparms=72%3A1205|39%3A1|66%3A2|65%3A12|240%3A1318&_trksid=p3286.c0.m14

http://www.alternate.de/html/categoryListing.html?cat1=009&cat2=041&cat3=000&&tn=HARDWARE&l1=Grafik&l2=Karten+PCI&;

this is probably the best you can get,but I haven't seen them anywhere..as for ati,last thing they made for pci were the x1300s,but they were extremely slow..