I'm looking at the BitFenix Merc Alpha case online and it seems as if the drive cages are not removable. I'm trying to fit a 305mm GPU in. Will it work? According to PCPartPicker.com it says the length without the drive cages is 12.60" (320mm) but the problem is the cage looks attached directly to the case. Look here: http://www.kitguru.net/wp-content/uploads/2012/02/DSCF2927A.jpg. I just want to fit an SSD and a HDD in, that's all.