Is it smart to wait for the gtx 700 series?

I am building a new pc in march, and I was wondering when the new line of graphics cards come out from nvidia.

go with the 600 series cards 

Go with the 670 if you can. Of course anything higher would be nice, but in my experience the 670 from gigabyte I chose has had the best bang for the buck for me and overclocks well. Got it opened box from NewEgg for a great price and I like the fan/heatsink they implemented. Has low noise and stays cool .....It gives me all I ask from it and more.......