ZOTAC GF9300-I-E LGA 775 NVIDIA GeForce 9300 HDMI Mini ITX Intel Motherboard
from newegg.com. It is supposed to come in Friday. I ordered it because it is one of the newer boards (DEC09) that supports a 755 socket. I had a older core2duo 2.6ghz laying around and some DDR2 ram. It seemed like the best and cheapest option.
*********Just reread the post and see that you are looking for reg PCI slot sorry****************
I wouldn't limit myself with the PCI slot...there are a lot of adapters that you can use if the board has different PCI connections aside from the old 'normal' standard.
I reread, but I didn't find the reason why you need the PCI slot. Maybe I missed it? The card that is to go in the PCI slot, can you get a PCI-Exress or USB version of it? What is it?
there are some nice VIA Nano (not nano-itx, Nano CPU) mainboards out there. The nano is currently a single core but it does pack quite a punch and is very comparable to the Atom.