Fan swap/Electric fan

The stock rad fan on my s13 is sooooo anoying, honestly I think that it is louder then the damned exhaust.

I read something about altima dual fans are a cheap and easy replacement, searched but couldnt really find any solid info. are they worth the work? Do they work as well as the stock fan?

What I want is to install electric fans that are automatically controlled but also have a 3rd party switch inside the car to turn them on or off, anything?

Also, i need a rear defroster, wtf should I do? I wrecked it taking off tint lol, anything aftermarket that works good?

Here you go:
http://www.n-e-c-c.com/forum/viewtopic.php?t=7254
http://www.n-e-c-c.com/forum/viewtopic.php?t=4416&highlight=