Pump question (aquabee vs. Eheim)

[NetSapiens]

So.. yet another noob with a dream of water cooling.

everyone done sighing yet? ok

My setup will be mostly self-made, since I am aiming for cheap more than effective, and silent more than cheap.

Radiator:
I have procured a heater core (unknown car origin, but a friend of a friend had it lying around) it measures approx. 290 X 140 mm, thickness unknown... but it's cheap and it's a start.

pump:
I have a choice here, and this is where I need the most help at the moment:
I can either spring for an Eheim 1048 OR an aquabee 2000 for the exact same price.
The Eheim specs at 600 liters/hour with a lift height of 1.5 meters
The Aquabee specs at 2000 liters/hour with a lift height of 1.6 meters

So... which would be recommended here? Please read further for the remainder of my proposed system

pump fan: 2 X 120mm fans. Model undecided, recommendations welcome.

Water block CPU:
I have also enlisted the help of a toolmaker, willing to help in CNC'ing a waterblock for me. I am assuming that a smith who does tooling for the airplane industry in this case knows what he's doing.
If anyone wants to venture a designtype, based mainly on pump choice above, I'd much appreciate it. I am personally leaning towards either a spiral design going from centre, or a maze4-like design with channels. I doubt I could design an impingement block accurately enough... at least not in my first attempt.

Reservoir: home made

For the above, please also consider that I intend to cool my Geforce F5900XT as well, but I am starting with the CPU to get my feet wet (pun intended)

I'll be running the whole thing with 1/2" ID tubes, and I am not sure if the Eheim matches that out of the box, I do know that the two pumps mentioned above have different specs on the barbs (you call them that on the pump too?), with the aquabee having 16mm/22mm ID/OD and the Eheim having 12mm/16mm according to the local aquarium authority.

Thanks for your answers, and thank you for a great forum. If I never get this water cooling completed, I'll still have learned a lot from here.

/NetSapiens
- WetSapiens wannabe

EDIT: Found a link for the aquabee pumps: http://www.aquabee-aquarientechnik.d...n/kreisel2.htm

[Ruiner]

I've never heard of the aquabee. The eheim has a great rep for reliability and quiet operation.

I'm very pleased with the AC fans I recently purchased, which are described in this thread: http://forums.procooling.com/vbb/showthread.php?t=10790 (scroll to the end, look for ferdb's post for linkage).

[Nugit]

I would go with the eheim pump, that aquabee puts quite alot of heat into the water (though probably not an issue with a heatercore of that size).
With eheim you are sure to get a quiet and reliable pump, you might want to check out their compact series as well they are quite easy to mod to inline. Cheap as well, the 1046 equivalent will set you back 63kr. pp.

In regards to the waterblock, spirals look great with a plexi top but their performance isn't the really top notch. If your machinist it up for it, why not go for some kind of impingement block, to make a decent one isn't that hard. Just dig around the forum for inspiration.
Otherwise theres a #Rotor or a lumpy channel block, they're nothing fancy but yeild quite good performance.