I went cheap and go the Rosewill Helious MX Brown for my work computer. But, you get what you pay for. It was on sale, but I the quality is definitely lacking compared to Ducky and other brands. Keycaps are as snug as the Ducky's and the mini-usb port where the cable attaches to the keyboard is flaky. If you occasionally bump your keyboard, the backlight will go out and you'll have to reset everything back since there is no onboard memory for the backlight. Overall, it just feels cheap.
I'll probably upgrade it when I get another keyboard for my home computer and bring that one to work.