Don't take what I'm saying the wrong way. If you currently own the parts you have now like the CPU ect then keep them. That 3570k will last you a long while. I was speaking in terms of if you were buying all parts now.
Also, if you have an Antec Truepower 450w PSU then that will be fine for the GTX 970.
To the monitor, it's not IPS but the Asus 144Hz panel. Great for gaming.