For more information about Harvest for Life, please go to the NTCG page on this site.
Songs of Praise -  Harvest Temple
A New Windrush DVD - purchase it now
Foogle's Google's excellent shopping search engine. Of course you can always just use the shopping tab option on Google searches.
Shopping Robot - helps you find the cheapest prices and stockists of the item you want.
Compare prices and products before you shop. Pricerunner shows competing suppliers' prices for any given product.