didn't you have a thread of similar nature
here ?
stick to one thread, accumulate the feedback and then make your purchase. In fact, It helps all those trying to give you advice, to stay on the course of the track - and not run into gravel.
* seems to me you haven't paid the watercooling sticky a visit. Raddage+rad properties(FPI+material) have been discussed in detail in the sticky+with some pointers of choosing one.