Just so you know Frank, Steve lifts insanely heavy weights for a natty lifter. You can read about what happened to his leg in his injury log.
If you look at the kind of loads that Oly lifters are able to clean it becomes apparent that a proper Oly heeled shoe is not going to hold your deadlifting back much, if any. If you are an advanced lifter then a flat soled shoe would be a better choice for deads but, for the rest of us, a good Oly shoe would be useful for most lifts as it will provide really good support for the entire foot.