To get the best ingredients for cooking these recipes you should go to the local Chinese/Asian supermarket.
In the UK, we go to Wing Yip, they are the UK's leading Chinese grocer with stores in Birmingham, Manchester, Cricklewood and Croydon and I love their strapline.... All the Chinese you need to know!
They also have an online shop
http://www.wingyip.com/index.php
I'll add a standard shopping list here soon.