Don't bother starting to mine CNC now, it's going to skyrocket it difficulty within a few hours:
http://cnc.strament.com/index.phpNow it says 6 hours, but just 2 hours ago it said 20 hours since hashrate is increrasing rapidly. I think within 1-2 hours difficulty will jump from 8 to >200, making it unprofitable to mine (unless its price skyrockets as well, of course).
And now, 15 minutes after the quoted post, the expected difficulty jump is in only 4 hours. It'll be done soon with CNC.