Hey thanks for the tips guys - much appreciated!
Right now I'm running a B350 tomahawk (MSI) with both GPU slots running a 1080ti. I'm tempted to pick up a cheap 6gb 1060 and run it in a riser but haven't done enough research yet. There is one pci-e slot left on the motherboard I could exploit. Only running a 850W psu right now though so that could be an issue if I try to go further with what I've got.
I'll see if I can locate the d/l link for the cpuminer-opt-3.7.7 and have a go with a little exta mining via CPU.
Merry christmas to everyone in the thread and have a good holiday today.