Background Info: I hate jack plugs they always seem to break or be dodgy, therefor i decided from the start that i needed proper audio connectors on the back of my pc.
Using a piller drilled and amazingly good marking out the holes were drilled for the plugs perfectly in the back of the case (all 4 plugs are one solid block so the holes had to be in perfect alignment), drilling these holes worried me as its an £80 case.

holes were also drilled for the 5.1 surround (sub and center plugs).

The finished product.