Necere, case width question? Have you tested if the case is wide enough for 3 slot GPU coolers? The Arctic twin turbo and Asus 3 slot coolers are extra wide, can this case accommodate them?
The 3rd slot is limited to 11", which excludes most of the triple slot ASUS cards, which are 11.8". They have a triple slot 7970 that's exactly 11", and while the cooler looks like it should fit, the PCB is wider than normal which pushes the PCIe power connectors further out, and I'm not too sure there's enough space for it.
The Accelero Twin Turbo II may or may not fit. It depends exactly where it sits on the card.
Basically, if you have a standard-width card, the most any cooler or waterblock can extend past the edge is 29mm before it hits the side panel (assuming Lian Li executes the design exactly to spec).
Without physical parts in-hand, or very precise models of everything, it's impossible to know for sure if things are going to fit or not (unless we increase the size enough to where there's no longer any question).
In short, I wouldn't really count on wider than normal cards/coolers fitting.