Well I can't get the pic to work because it is on my Hard Drive and it wont let me copy it, so I will have to describe it to you.
As you know the res will be fitted into one of by spare drive bays. from there to coolant flows to the pump and up to the 80mm rad on the top of the case. From the 80mm rad the coolant flows through the cpu water block and on to the 120mm rad. From the 120mm rad the coolant flows to the GPU block and back towards the res. Before the coolant goes back to re res I was either going to have a "T" section with the fillport mounted to the roof of the case so that it is connected to the same inlet as the rest of the system or I could not use the "T" section and attach the fillport to the res with the spare inlet hole.
It sounds a bit complicated and is hard to see without the pic but let me know what you think.