I am looking for a good, attractive case that will be able to fit a dual 120mm fan radiator. It needs to be a Full Tower, nothing smaller. I am willing to cut some blowholes, as long as the structural integrity is not compromised. I am also curious how much impact using a dual 80mm fan rad would have compared to the 120mm. I plan to cool cpu, northbridge, and gpu. Sound is also an issue.

If you are going to have three water blocks and sound is also an issue I would think of using nothing less than a 120mm radiator. The 120mm fans will blow much more air, much quieter than 80mm fans. As far as a case to fit it all I would look into the Lian Li PC70/75 both of which are full towers made entirely of aluminium (making for easier cuts for the blowholes).