http://www.newegg.com/Product/ComboDealDetails.aspx?ItemList=Combo.212580
Its the only AM3 mobo . You need AM3 ram with this combo so you can expect more parts support in the future as ddr2 supplies dry up .
Low latency [c7 ]1333MHz ram is relatively cheap . You dont gain anything by buying 1600MHz ram with lower latency