Try to stay away from volume discounts.  A new client alway promises alot of work that usually turns out alot less than they say.  Later you will be giving a discount to a client that sends less work than you thought and you end up doing it for less than what your biggest client pays.  Dont give discounts, just give good work and they wont leave.  I have learned that any client that wants work cheap is not a good client for the long haul.  C