Intel does not depend on high powered motherboards for performance.
Unless you will be using ln2 and competitively overclocking, most any motherboard will do.
You have not stated your budget.
I3-4170 will generally be a better performer in games than the FX-6300 at a similar price point. H97 motherboard is fine.
I5-4460 and H97 would be the next level.
Once you get into the $200+ cpu range, I strongly suggest i5-6700K and a Z170 motherboard.
None of the intel processors need or benefit from liquid cooling. Spend your money elsewhere.
I3 and I5 run fine on the stock cooler. I5-6700K can benefit from a simple 120mm tower cooler.
Once you run out of graphics capability, plan on simply replacing it with the next best thing. GTX980ti today, pascal or amd next year.
Your current psu will suffice.