TigerDirect has this BIOSTAR A780L3B 760G ATX Motherboard for $29.99 after instant savings and this $15 mail-in-rebate
. Shipping is $2.99. It features an AM3 socket, an AMD 760G North Bridge, SB710 South Bridge, supports up to 16GB of memory and has an ATI Radeon HD 3000 video chipset. Newegg
has this same motherboard for $44.99.