Would be the third, but I'm not going to do it. There is no way a single BIX can cool a dual Opteron and two GPUs, and there are no suitable blocks for the GF6800 series anyway (I just don't like the NV68, sorry). I'll stick with what I've got. But it's nice to know that an SLI upgrade path is available if in a few years or so I decided to upgrade. That's a 5" LCD screen --fits perfectly in the bays. You can cannibalise a PSOne LCD screen --there is a Modding Guide on these forums that tells you how.