I have used Logitech keyboards exclusively for a long time because of the typing feel and features the peripherals tend to offer. I finally moved away from typing everything on my G15 to a Logitech Illuminated Keyboard for the thin and comfortable profile.
If you are the 100% gaming keyboard type, Logitech has a new keyboard for you called the G510. The keyboard is wired, unlike the other two new gaming peripherals that debuted today. The G510 has backlighting that the user can customize to their color choice. An LCD panel is included just like the panel on the older gaming keyboards.
The keyboard also has a full speed USB port and integrated USB audio. Macros can be bound to the 18 programmable G-keys and the keyboard supports up to five simultaneous key strokes. The G510 will ship soon for $119.99.