Those are both super interesting. The Thermaltake seems really well thought out. Video card can be positioned horizontally and then if you water cool, the cords would run right to the radiator on the front side of the case (which is my other problem. I have everything in a 3 box Salamander, so my 605 vents to the right into the side of the cabinet and to the left into a Pioneer Elite AVR). I'm so so on the looks, but behind closed cabinet doors, who cares i guess.
That Portal case looks like it would be fun to build in, minus the wire management. Also, that thing must be a ventilation nightmare if you're running any OC on your CPU plus a 1080-level card.
E: I realized as I was typing that, considering the cabinet my 605 is stuffed in, I bet I actually would get net net better cooling with that bitfenix by virtue of it just sitting out in the open, even with the compact design.