I have a nexus Controller from vantec and a couple tornados (80's and 92's. the controllers works fine. My suggestion is to find one of the smaller ones that go in a 3.5" Floppy drive bay. I have one of the bigger ones that use a 5.25 bay. One thing is that the tornados are LOUD but after awhile you get use to the noise, or just loose your hearing, what ever comes first.
My suggestion is if you are using it to cool a CPU just buy a better heatsink and either buy a case with a CPU duct to draw cool air from outside the case or mod the and create your own CPU duct, like I did. your ears will thank you latter.
In reallity if you create a CPU duct and get a good heatsink and a decent fan you should be fine...My temps are same if not lower with my CPU duct than when I used a tornado, Infact my CPU runs 3-5 degrees C cooler than the rest of my system at Idle. right now my temps are CPU 29 degrees C, Case 34 degrees C. That is with a 2" CPU duct drawing cool air from outside the case and I am OC by 200Mhz (not a fast OC but my RAM is limmiting me)
my 2 cents