title: adding price rules to magento products
body: <p>I'm trying to put some finishing touches to a magento project, but I have a problem.</p>
  
  <p>When adding products, I need to be able to add 3 vital pieces of information:</p>
  
  <ol>
  <li>wholesale cost of product - field available for that</li>
  <li>% discount on wholesaler list price </li>
  <li>delivery route (with price) chosen from a select list</li>
  <li>desired % profit margin</li>
  </ol>
  
  <p>Number 4 can be dealt with an extension I've purchased here:
  <a href="http://www.aitoc.com/en/magentomods_cost_based_pricing.html" rel="nofollow">http://www.aitoc.com/en/magentomods_cost_based_pricing.html</a></p>
  
  <p>Problem is that the other two fields (2 and 3) I need to be able to factor in.</p>
  
  <p>Has anybody got any extensions that might be able to satisfy these criteria?  Commercial extensions are fine!</p>