I'm not too keen on sacrificing the hot-swap bays, but I think there might be some room behind them to fit a radiator in. You mention there is room in the top of the case for a radiator. This is true but not if I want to be able to put the case in a rack later on. I'm not sure if I even want to put it in a rack though, especially if I mod it. I'll take some messurements when I get home from work to see where I can stick in a radiator.