Hehe, thanks for the advice. Pretty much what I had in mind, so it must mean that I'm on the right track with this.
I was thinking mcw6000, for 3/8 tubing. I'd love a pair of G5, but it's too freaking expensive

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What do you think about how that guy installed his rad? Does he have enough ventilation?
I have one more issue, with which I'm hoping I can get help here. I heard about so called "low flow" systems, where supposedly you get good performance because of turbulence and not high flow. Also supposedly, it would fit better with multi-blocks setups, specificaly because of the low flow. What can you tell me about this?
thanks,
Daniel.