I've decided to go with a new case and picked up the Scout. The case is much smaller then my Rocketfish, so I've had to do some mods (still a work in progress). I wasn't sure if the case would even fit my Rampage II Extreme since it is an eATX case which is 10.6" wide (~ 1" wider then standard ATX). It turns out the motherboard just fits! I ended up removing the HDD cage so I can mount a 120mm rad (trying to get the H50 to work, but I need to replace the tubing as the kit tubing is too short).
Here are pics showing just how tight of a fit the case is for the eATX motherboard:
Now I am trying to decide, should I mod the H50 or should I just order a 120mm rad with integrated res, a Heatkiller and an MCP355.