I'm planning to build an SLI water cooling system. The TJ11 was very attractive with its 9 Drive bays, but the hard drive cages in the expansion slot had to be taken out if you were to set up a quad radiator. I thought I could set a tri-radiator in there to cool my graphics cards (all three of them) and cut two holes for the tubes on the outside of the the case to cool my CPU. The 900D however spares me from this trouble with its 9 storage cases and excellent cable management and water cooling potential. My only problem with it is that it only has 4 drive bays! I was planning on putting my reservoir (that took two bays) on the TJ11, but those were on the bottom and led straight to the pump. This was very convenient, as my power supply is fairly large as well. I want to know your opinions on which case would benefit me the most. Thanks!