Hi there!
I'd also like to be beta tester for you project.
I am 22 years old and from germany.
I took part in several closed and open beta tests in other games yet (e.g. company of heroes, supreme commander).
Currently im playing the American Civil War mod for empire total war and Day-Z. I was always a fan of the Darthmod for any total war game.
UPDATE: Since I've read there will be 50-60 testers for the steam version, I want to make clear that, besides this post was quite some time ago, im still more than willing to be one of your testers. Checking the forum everyday for news.