The tuniq was actually designed to fit into most cases. It raises high enough off the mobo so no cpacitors or chipset coolers get in the way, and is 15cm high (the standard PC width is 19cm). So it should fit into most ATX full and midtowers. It's just designed really well.
That thing is huge, just looked one up on overclock.net. The guy put adhesive strips on 4 of the corners and attached 2 120 I think to the heatsink. :shocked: