I have the P-180 myself, and find it's a great case, and the thermal zones do make a difference. Plus I love how sturdy it is.
One recommendation that I'd make is to find a PSU that's modular. The one thing that I've found with the case is that the lower section does not leave a lot of room for extra cables to lie around, nor do you want to have to push them all up to the mobo area. It's not a make-or-break thing, but something worth looking into.