You can check my sig for a link to what my setup previously looked like. I just got an Obsidian 800D and a 360 Black Ice GTX Gen2 Xtreme radiator. I plan on running my OC'd 970 (1.35-1.4Vcore) and my HD5970 in my loop, and in the next few weeks I plan on upgrading to an EK'd HD6990. I'm in TJ09 I had the same setup running off of a couple of cheapo radiators (240 + 120). My video card never exceeded 45* under load, and my CPU never exceeded 55* (unless I was running Prime/LinX etc), so I'm assuming my temps were respectable for my setup. The 800D has room for the 360 radiator on top, and I can fit my cheapo 120 in the rear, but I'm wondering if this is even worth it. I just got the case and thus don't want to mod it, so installing a 2nd 360 or a 240 isn't really an option at the moment. So my question is, would the 2nd 120mm radiator be worth installing? If I were to purchase a higher performance one would it be worth it? I'm just not exactly sure if the added radiator is going to cause flow restriction to where it does more harm than good. The pump I'm using is a Swiftech 655 installed in an XSPC dual bay res.