title: Override Magento GetPrice function
body: <p>I have a custom SQL database in which we have stored different prices per customer per product and per quantity. </p>
  
  <p>Now we want to setup a Magento web store and found out that we cannot really import those prices into Magento because it does not match in terms of data structure. (And Magento would probably melt down because of the huge amounts of data we whould throw at it.) </p>
  
  <p>So I'm thinking; can I leave the data where it is, setup a service on top of that data, and just override some GetPrice() method within Magento to get the right price? (That right price should then of course show up in every possible page that shows prices. And, even more important, that price should be used in baskets and orders too.)</p>
  
  <p>My question is A: Would it work like that? Just overriding one method and we have custom pricing? Or do we have to alter many more methods? </p>
  
  <p>And B: Where can I find that code/method to override? </p>
  
  <p>(Magento is quite new for me. And did spend half a day looking through tons of source code, but i'm not yet that confident with the whole application that i could anwers my own questions by looking through the code.)</p>