Hey all,
I'd like to start by saying that this is a great community, and it's even better that it's based here in the Great White North

Some people may say that I'm the biggest idiot in the world for trying this. But, I will say that I will try it because I can :P. Also, if all goes well, I may end up watercooling my desktop.
For the CPU/GPU waterblock, I intend on using the one from XSPC (assuming Goalieman doesn't sell his to someone else, then I'm screwed

)
XSPC - Performance PC Cooling
From what I've read thus far, it's generally a bad idea to mix metals (copper and aluminum) in one loop, which leads to galvanic corrosion. My question then is, how likely is such corrosion to occur if the block is copper and the rad is aluminum but some sort of additive (water wetter?) is added? Or is it best to just keep one metal throughout the loop (copper in my case)?
Going from there, which radiator would be best suited to the job (copper/aluminum, brand)? The rad Goalieman is selling seems to be fairly common in other watercooled xbox 360s (the Magicool Extreme Slim-profile 2x40mm), which helps keep everything internal. Or, should I go the external route and try to rig the rad off the back of the console, near the fan exhausts? This way a larger rad could be used, maybe 1x120 or maybe 2x120. Would also be easier to keep the resevoir outside if necessary but should be possible to mount internally if the rad is outside.
For the pump, the Swiftech MCP355 also seems to be quite common in watercooled xbox's. Would this pump be sufficient or are there alternatives that I should consider?
Clearly, I have lots of reading to do about it still, and will do so in the meantime. But I'd rather take the advice of some fellow Canadians, rather than blindly follow someone else's worklog and not learn much out of it.
Thanks in advance, I look forward to the replies.