I guess if you cant be tempted to come over to the dark side here is another article to add to your list.
How Sand Beds REALLY work
http://reefkeeping.com/issues/2003-0...ture/index.php
I personally just got rid of my deep sand bed about a year ago. I didn't have enough micro fauna in it and so it turned into and H2S bomb. I had less than 1ppm Nitrate then and I am still at that same reading now. For me it wasn't worth it and I'm glad it's gone.