I must say the number of these threads is alarming. At least do a bit of research in the Wiki to see what the options are before asking "Hey, guys, can you, like, you know, recommend a keyboard for doing, like, things and stuff with? Would be great, k thx"
That aside, the RK-9000 is a great option. The blues work great despite the "OMG DOUBLE TAP NO WORK!!!11" OCN mindset (hint, it works fine). Otherwise, the 6Gv2 isn't a bad option if you think you'll like the Black switches, and the Razer Black Widow seems to be a decent value, though it has bling (omfg 5 macro keys NOOO)