Thermaltake Armor+ MX VH8000BWS and Zalman ZM-MFC1 or 2

Hiya there. Hope someone can point me in the right direction.

I recently switched to a Thermaltake Armor+ MX Case, everything great save for the fan noise, it's LOUD!
Upon reviews and reviews and more reviews, turns out the noise is to be expected so my only choice is to get a fan speed controller.

Here's what I can get:
http://www.newegg.com/Product/Product.aspx?Item=N82E168...
or
http://www.newegg.com/Product/Product.aspx?Item=N82E168...

I'm not sure if they will make a difference since Thermaltake says the 23cm fan rotate at 800rpm and I think there's a minimum on the speed controllers.
My other doubt is regarding cable adaptors or something like that, does the package include everything?

Last thing, the 23cm fan has only 2-pins, does it matter at all?

Any suggestions would be greatly appreciated.

I can only choose from those 2 since I live in Chile and ordering one from amazon or newegg will make the final price go skyrocket.

Thx in advance.