That's weird, my MA770T board supports that right now so I wonder which brands you were looking at. I paid like 80USD for mine since I wanted more function than form. Do you have any preferences on sites/places to order from?
The 770 is an older chipset but still works fine if you can find it. I did some searching on those two sites and the motherboards available don't seem to have an IDE header. I just checked the QVL for my motherboard and the RAM I'm using, G.Skill RipJaws 2x4GB, isn't even listed so I wouldn't entirely believe it.