I have a microATX case and it only takes low profile PCI cards. Can I get a bigger microATX case and take this mobo and put it there to use the full size PCI cards?
Most likely no then. A lot of prebuilts use proprietary components that won't fit in other cases. That could mean the motherboard is shaped differently, they screw holes for the motherboard are in different places, they have one screw that is a rivet, etc...