What is the best way to convert an IEnumerator to a generic IEnumerator?

I am writing a custom ConfigurationElementCollection for a custom ConfigurationHandler in C#.NET 3.5 and I am wanting to expose the IEnumerator as a generic IEnumerator.

What would be the best way to achieve this?

I am currently using the code:

public new IEnumerator<GenericObject> GetEnumerator()
{
  var list = new List();
  var baseEnum = base.GetEnumerator();
  while(baseEnum.MoveNext())
  {
    var obj = baseEnum.Current as GenericObject;
    if (obj != null)
      list.Add(obj);
  }
  return list.GetEnumerator();
}

Cheers