Don't bother with the antifreeze. Just run pure distilled water, and add a drop or two of
PT_Nuke to act as a biocide.
Between the two waterblocks, the Fuzion will work better with smaller pumps, while the Apogee GTZ might get you an extra few degrees with a good pump. Both have excellent mounting systems. If you were thinking of using compression fittings, they won't fit on the Fuzion, so go with the GTZ. Otherwise, doesn't matter.