Thanks. You confirmed my suspicions. Oh wow 3000rpm GT's! I think the highest GT I would go for is a 1850. I suspect your response will be that I can turn down the fans to 1850rpm... I hate to say I told you so. I would rather let you imagine me saying it. I got 165 mm of space in the bottom front of my case. Enough for the monsta rad and 38mm thick fans in push pull. I just say why not.