I know what you mean. Can't speak for the other cases, but I read a lot of reviews on the P182 and cooling is supposed to be very good, with a lot of options available as regards fan placement. With the added sound insulation, more fans shouldn't be as intrusive as with some cases.
I think there are official threads for the PC7+ and Eclipse. Have a gander in them; they'll be able to answer some of your questions I'm sure!