distillers beer is the precursor to whiskey, since there are a lot of types of whiskey you can make it from any malted grain with adequate diastatic (enzymes) power, barley, corn, rye... the yeast strain and fermentation temperature are important to produce the right esters that will boil near the same temp as ethanol and carry over into the distillate. One more really important thing is the water source (this is the reason you see whiskey distilleries built on rivers in specific areas, like in Tennessee or Kentucky). I seem to remember seeing whiskey yeast in a distilling section of a homebrew website I just cant remember which one.
Distilling without proper licenses and stuff is illegal in the states. but the knowledge to do so isn't, so I recommend the following reads:
http://www.homedistiller.org/
The Compleat Distiller [Isbn 0-473-08135-0] can be found online at
http://www.amphora-society.com/
"The Alaskan Bootlegger's Bible" is another great book, it has some good still designs that you can build with household stuff.
"Making Pure Corn Whiskey" Is another really good one, It tells you everything you need to make corn whiskey which doesnt require aging in charred oak barrels.
I hope this post isnt inappropriate for this forum. I couldnt find the rules about discussing distilling.