Practice and learn to avoid them, buff and zerg through them, watch MrCow's videos, die. Those are basically your options.
The nasty ones that come to mind and that always give me fits are the fire room in STK, whirling blades in TR, whirling blades in Chains of Flame, and WizKing in general, although right now, ANY trap in an Elite quest is going to be nasty because the trap scaling is all our of whack and presumed to be bugged.
Again, if you know the exact trap location and when/where they are triggered, you can get through them. The problem is that you usually have one chance because once they are sprung, if you didn't get through it, you are going to be taking it in the chops. Having evasion (and the ability to disarm them) gives you some built-in fudge factor.
That said, if you are primarily planning to run on Normal or even Hard, it's less of a concern. But on Elite, the chance to get one-shotted is much higher.