i heard this mobo is really good http://pcpartpicker.com/part/asus-motherboard-h81mdplus but this mobo don't support cf or sli. when cf and sli are important for you buy this: http://pcpartpicker.com/part/asrock-motherboard-h97mpro4 maybe other people know other good mobo.
edit: http://forums.anandtech.com/showthread.php?t=2389948 here you can find other non z motherboard where you can overclock the pentinum g3258
edit: http://forums.anandtech.com/showthread.php?t=2389948 here you can find other non z motherboard where you can overclock the pentinum g3258
