I'm currently running an ASUS M4A785-M chipset DDR2 version with my 955 BE. I did so because, like you, I wanted minimal costs/hastle to get the support I wanted.
As for best? I think the best you're going to get is a 785/790 based amd chipset. You can get very good boards in this line up for about $80.
The M4A785-M that I'm using is quite good, but also:http://www.newegg.com/Product/Product.aspx?Item=N82E16813128394
This board by GIGABYTE features a little better overall feature load-out in my opinion, it's definitely a trust-worthy manufacturer, and it's still at a good price.