You know already, Ducky Shine Cherry Brown with red back light full NKRO via PS/2 and I love it.
IMO Blues are awesome for typing but a mech keyboard is clacky enough with out the audible feed back. Blacks I find way too stiff.
The Ducky uses a Cherry Black on the space bar to balance out the power of the thumb would annoy me if the whole board was black.
Browns have the tactile feed back so you can feel the point the press registers. My typing skills are not good enough for Reds although it would be an awesome all in gaming switch I make too many mistakes typing on them as I seem to be not super accurate on them.
My typing speed has easily increased 20% since moving from the Razer Trany and more importantly the wife loves this one too she hated the Razer.
Would love to get my hands on a Topre Real Force but will probably look at a cheaper Leopold due to cost for work when I return after holidays.
Quack Quack!
everything you need to know about Cherries
http://geekhack.org/showwiki.php?title=Che...ion+Switch+Wiki