Hi,
the modified Berlin system (ie including live sand, the original Berlin system does not include this as it was not discovered yet) does seem to be the most effective and easiest method of nitrate reduction. Lighting is important but IME lighting only works as well as the system will allow. For example, if you have 1200 watts of MH lighting but high nitrates and phosphates your tank will still never look good. However, once you have mastered your water parameters lighting does seem to be the next most important factor.
Regards,
Tom