First, I haven't purchsed either yet, but I did come home with a 2500K and a P8Z68-V PRO/GEN3 today.

1. I've never watercooled before. I did read somewhere that watercooling is more affected by ambient temps than air; is this accurate? Just curious as my office can get pretty hot sometimes.

2. Assuming the radiator would prevent me from mounting the PSU on the top of the case... trying to figure out if the bottom PCI-E slot would be usable. I have a HAF 932 now, with a P6T Deluxe V2, and there's only enough room for a single-slot video card before you hit the top of the PSU. Different case and different motherboard though.

Any other coolers I should be looking at? Noise isn't really an issue for me (unless it sounds like a jet engine, i.e. Deltas or my old Vantec Tornado), but I kind of like the fact that the Cooler Master H-series doesn't take up a ton of room.

I'd consider other cases as well, but I do really like my 932.