Wizard Set Swaps
The main set swap that wizards want is the thor's jewel set (level 110 from BA). The 30% bonus to inferno cdr combined with the 35% from tainted/145 set allows for a 5 second inferno cooldown, vital to wizard's damage.
Another set swap that is nice for wizards is the advanced truth (level 100 leviathan nest set) because it allows for a much faster stifle cooldown. This is mainly utilized in dungeons like ferocious tundra, where the boss has a one hit mechanic because it allows for a larger window for the cleric to silence the boss.