Alright then I think I'll buy the 212, from the reviews and what I've read it seems that almost everyone recommends it for overclocking, some even say it's as good as a high end cooler with a low price tag. What I can probably do is get another 120mm fan to put extra on the heatsink for even better performance
The right man in the wrong place can make all the difference in the world.

, I'll get that one, seems like a very good option for such a low price
Depending on if your using dyes or not, maintenance isn't that bad either, just a yearly cleaning usually, maybe a flush halfway through. I would send you a pic, but my Cables are a mess in my case right now, and that won't change till I get a modular PSU due to my "unorthodox" chassis.
Also, maintenance is more of an annual thing or half way through the year if your flushing fluids with dyes, and stuff like that. I've seen fluids go well over that time without any damage, but its good to be safe with at least annual cleaning and MAYBE tubing replacement (depending on your tubing). Also, if you design your loop correctly, filling and draining can be easy with your Resevoir and a good valve at the bottom of the loop.