$q = new ezAbstractCoolQuhttp://pastebin.ca/comments.php?bin_id=344158
comment on this postery();

$q->
  select('*')->
  where()->
    col('x')->
    op('=')->
    val('y')->
    op('OR')->
    startGroup()->
      col('y')->
      op('>=')->
      val(110)->
    endGroup()->

  execute();

produces:

SELECT * FROM `table` WHERE x=y OR (y>=110);