Question about motherboard

Goodmorning Tom's community ,

i want to thank you for all the help and guidness you have provide me in all my questions so far, they were really helpfull and very pleasant to me.

Here i come again for a last question in the new build that im planing.

I need help with what motherboard to choose (bare in mind that i plan to overclock my cpu to the max with this cooler CNPS12X, i heard it can go to 5ghz easy with this cooler including 6 fans in the case with will provide nice air flow in the system.)

i have view those motherboards since they are in my budgets area, i would apriciate if u tell me honestly again about witch will fit the situation proper.

1st: http://uk.gigabyte.com/products/product-page.aspx?pid=4...

2nd: http://uk.gigabyte.com/products/product-page.aspx?pid=4...

3rd: http://www.asus.com/Motherboards/M5A99FX_PRO_R20/

4rd: http://www.asus.com/Motherboards/SABERTOOTH_990FX/

5th: http://www.asus.com/Motherboards/M5A99X_EVO_R20/

6th: http://www.asrock.com/mb/AMD/990FX%20Extreme4/

those are the ones that are affordable for me they are good value and performance. Sabertooth is nice but the only thing that holds me a bit back is that it only supports ddr3 1866mhz only and the others 2100mhz, what u guys think 1866mhz is good speed for todays needs and gaming in general?

Thanks in advance.