Fluid/wind/fuckin' magnets. Which one isn't going to fuck off the neighbours? The turbo's going to be in the hallway. Which has wooden floors. And bare walls.
I like the one BareNecessities posted as it seems like a really good deal but I also have to bow down to andyp's notorious time and dedication in the saddle. Is there a reason why you've gone for magnets/wind over fluid?
fluid trainer with some rubber matts under it