Doug, there are other threads in TuS with this topic but i'll write here anyway:
If you have the money, the Logitech Illuminated k740 is the best keyboard i've ever had.
Not only is it incredibly fast and precise for roping, it's lightweight and fairly quiet when tapping.
It's extremely comfortable to type with and looks fantastic.
From what i've been told avirex, barman & statik use it also, I have been told there are other very skilled players who use this keyboard model, as well as even more players who use other Logitech Illuminated k series keyboards.
Remember, if you order online, from certain websites, you should have a 7 or 14(maybe more, maybe less) day period where you can return the item if you aren't fully satisfied with your purchase. You could use this to test a few and pick the one you like most, as each player has their own personal style/preference.
@ANO - If someone pulled over in a car and asked you for directions would your reply be W W W DOT GOOGLE DOT COM?