Okay here is what I'm thinking, but I'm not sure if everything will fit, since the picture is off scale, but a general fit... What I'm concerned about are these points:
Pro:
1) Potentually less vibration since the top of case/Resevior suports pump and transfers vibration to rest of case
2) Cooling of pump, since before it's basically in a stagnant area of air
3) Less radiated heat exposure to CPU block/Vid Card, Ram | since the pump currently is near all 3 with little air flow
4) Incoming H20 from pump will be exposed to the coolest region of the HCore (bottom) (not sure if this will produce any noticable temp effect)
Cons:
1) The increased case temps from the incoming extra Hcore heat.
2) Hassle to change jumpers etc... on mobo
3) *Might* not fit? I'm going to check later...
So far this is all I can think of, since I'm planning on going VAPOR-Phase and doing away with all this water non-sense! J/k, yeah I think I could fit a nice Compressor and Condensor in my case, or I'll just move it out the back, but that's a diff forum topic! Thanks all.
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XP 1600+ AGOIA-Y (GreenLabel, UNLOCKED!@/ NF7-S 2.0/ PC 2700 DDR
10.5*172FSB(1806/ 1991 high), Vcore 1.792...@84.95Watts
--86' Chevette Heater Core
--1/2" Vinyl tubes
--Via1300-Stealth Mod(QUIET!)

---Home made copper-tube block
---PVC small internal res