Nerd Gear: Computer Cases Cosmos II vs Thor 2 vs Obsidian 650D

Still working on ideas for gaming computer for girlfriend, so that we can game together, we only have one machine that can handle much in the way of games at the moment, here are some of the cases I looked at today:

• Cooler Master Cosmos 2: http://www.anandtech.com/show/5451/cooler-master-cosmos-ii-large-and-in-charge
• Rosewill Thor V2:  http://www.anandtech.com/show/4648/rosewill-thor-v2-the-god-of-cooling-and-silence
• Corsair Obsidian 650D:  http://www.anandtech.com/show/4529/corsair-obsidian-650d-transmuting-graphite-to-obsidian

I welcome any additional suggestions, don't have any real preferences at the movement, other than I want a quality case, cause I will probably use it for 10+ years, and it needs to support water cooling & high end GPU's for future upgrades.