Yup, those are the ones. Thanks.
Unfortunately, after measuring my case I realised that my Fedco 2-342 isn't going to fit into the case like that. The heatercore would either get in the way of the motherboard or one of my CD-ROM bays. Even if I dremeled out a section of the CD-ROM bays I would have to go at it with the hard drive rack too or else the heatcore/shroud/fan combo is going to stick out of the side of the case by two to three inches.
Guess I'm just going to have to mount the whole thing on the top of the case
And, yeah, I definitely know about the Monty Python bunny, but I don't think I was thinking about it when I chose my name those many years ago