Which ATX motherboard is right for my ATX case?

I bought this case:


http://cgi.ebay.com/10-Bay-Black-ATX-Mid鈥?/a>


It is a mid-tower ATX case.





Which form factor(s) of motherboards would fit? ATX, Mini ATX, Micro ATX, Baby AT, Extended ATX?Which ATX motherboard is right for my ATX case?
You don't need to even look at any other form factor beside ATX depending on the CPU brand you want I can recommend a good Intel board.