Thanks, people! Appreciate it.
Modder: will stay with one pump to keep the cost and the complexity of the system down. Even though the Kandalf-case is roomy, I don't think I could fit two separate waterloops into it. At least not with using twin pumps with twin reservoirs.
Going to take a close look at the stock TT-radiator and the BlackIce III to see if the BI III will fit behind the front door AND look OK. Don't want to Rat-mod my case since it's quite clean and sleek from the beginning, if a tad on the large side.
One important question, though: Coolant. As I mentioned, I have the stock ThermalTake-stuff and a bottle of Zalman's coolant that you have to dilute yourself. Still a bit in the blue about which I should use, or if I should get some Feser ONE instead.
Clustermunitions is only a way to tell that you don't like someone.