Rogue Leader :
Couple misconceptions there, first off you do not need a Platinum or Titanium PSU to overclock, in fact the one you are getting will overclock fine.
Z boards do not have any "better heat tolerance" they just have the Z chipset, now they do tend to be higher end boards so they may have better VRM heatsinks, however high end H and B boards have this as well.
You can do a mild overclock with a $40 Cryorig H7, it comes with the thermal paste for free in the box.
Hi, thanks for your reply.
I agree with you in terms of PSU rating. As you've mentioned, I maybe do some very "mild" OC'ing in the future.
For the Air cooling, I was aiming for Noctua NH-D15 (based on reviews and peers) <--- is this a good cooler?
Any aftermarket thermal paste you can suggest?