Saw that the K70 mk.2 is on sale for $99.99 at Amazon (down from $159.99). Have the MX Brown version and quite like it, although the keycaps are little fragile (I've already broken 3 and Corsair customer support isn't the quickest).
Aircraft grade anodized brushed aluminum frame, built to withstand a lifetime of gaming. Keyboard Connectivity : Wired
8MB profile storage with hardware macro and lighting playback allow access to up to three stored profiles on the go, independent of external software
Per key dynamic multi color RGB backlighting offers near unlimited color customization and control; 100percentage anti ghosting with 104 key rollover on USB ensure no matter how fast your play, all your keys register
100percentage CHERRY MX mechanical key switches provide the reliability and accuracy you demand
USB pass through port provides convenient access to an additional USB port for your mouse or headset. HID Keyboard Report Rate 1000 Hertz
CORSAIR iCUE software enables vivid dynamic lighting control, sophisticated macro programming and full system lighting synchronization across compatible CORSAIR peripherals, coolers, fans and more