What is the context of Surah 4 Verse 34? Most translations state quite clearly that you can beat your wife

e.g

"Men are (meant to be righteous and kind) guardians of women because God has favored some more than others and because they (i.e. men) spend out of their wealth. (In their turn) righteous women are (meant to be) devoted and to guard what God has (willed to be) guarded even though out of sight (of the husband). As for those (women) on whose part you fear ill-will and nasty conduct, admonish them (first), (next) separate them in beds (and last) beat them. But if they obey you, then seek nothing against them. Behold, God is most high and great. (4:34)

Ahmad Saffat
http://www.themodernreligion.com/women/dv-4-34-shafaat.html

Men are the maintainers of women because Allah has made some of them to excel others and because they spend out of their property; the good women are therefore obedient, guarding the unseen as Allah has guarded; and (as to) those on whose part you fear desertion, admonish them, and leave them alone in the sleeping-places and beat them; then if they obey you, do not seek a way against them; surely Allah is High, Great.— translated by M. H. Shakir

wikipedia

..etc

Just trying to raise debate on the issue I'm not an advocate of wifebeaters myself