Best Sub-$90 AM3 motherboards?

For ddr2, I would go for the foxconn cinema premium hdmi for around $83 shipped at newegg, or for ddr3, checkout the Biostar TA880GB+ for $65 shipped. I don't pay much attention to the reviews anymore; one guy said the biostar had no onboard video. He must have been talking about a different board. I've had a couple of biostar boards, and they work better than some of the better brands lately. They also have a fast turnaround time for rma's, and answered all my emails. If you want sata 6 or usb 3, you'll have to spend more. All those low cost boards are atx.

I know you said you would go for one without integrated graphics but if you want to settle for one with I would try: http://www.newegg.com/Product/Product.aspx?Item=N82E168...

Shipped for 72.99
I have 2 computer with these and they are just great.

what if raised it to $95? Core unlocker is something I need, because I will be buying a Athlon Tri, and if it doesn't unlock oh well. They aren't i7's, but they aren't slow either.

At $95, I would look no further than the ASRock Extreme3. It would be my first & last choice at that price range   .

Missed the mATX requirement