Which gaming keyboards are worth buying?

The act of building a great gaming rig isn't just about finding the most powerful processor, a capable graphics card or massive amounts of RAM. It's also about what you use to interact with the machine itself -- the peripherals you bring to the table. A few months ago, we told you about the best gaming mice available. Now we take a look at some recent gaming keyboards to see which ones have the most to offer in terms of lighting, macros and, of course, how good they feel to type on.