[Long Haired Git]

I think I've already covered this in another thread, but my solution is to keep things pretty simple.

Inside fridge:
Eheim 1250, CPU & GPU blocks.
Shrouded 120.1 radiator with a 120mm fan hooked as the sole extractor from the PSU.
Ideally laid out so that the PSU's fan draws air over the NB, HDDs etc.
Outside you just need a good sized radiator setup to get or generate as much air flow as possible.

As a guide, I ran an XP1700 @ 1433 Mhz using a old Maze1 and an Eheim 1250 off two 130x150 radiators. They were shrouded (bad) and had fans attached( bad ) but I left them unpowered as passive I ran @ 20 degrees above ambient, which was fine for me.
You'll be adding in GPU heat (30W?) and PSU heat (80W?) and other heat soaked up by the internal radiator (30W?) but then can also avoid my mistakes and run the radiator without a shroud and without fans so that you get as much passive air flow as possible. Hanging the radiator away from the wall and where there may be some air flow (near ventilation, near window) or outside, or under the house, or mounting it horizontally (better) and also just having more SA (so a 240 x 240 or bigger).

If was going to go Peltier (which I'd only do if the above solution didn't work to you satisfaction) then I would do a Cathar-dual-loop config, and tune the Peltier's voltage to avoid condensation by keeping the cold side "cool" rather than "cold".