That case will only take Micro ATX motherboards: http://www.newegg.com/Product/Produ...010200280+107172317+1071729140&name=Intel+G33 A G33 is your best bet. You also need to make sure that the case's power button cables can connect to the motherboard since it is a Gateway designed case. It would be a shame if you couldn't use you new equipment if you can't even power it up.
How about this one? http://www.globalcomputer.com/applications/SearchTools/item-details.asp?EdpNo=3114321&CatId=2417
