You will want to negotiate a final price which, depending on the number of licenses and the size of the relationship between your organization and H-P, may be very significant. I suppose that everyone pays a somewhat different price, owing to this.
That being said, you should be aware that the product is licensed according to the number of different databases used, the various modules you want to use, and the number of users, divided between concurrent users and named users. Named users, which have guaranteed access to the tool, costs significantly less than concurrent users.
As Josh said it would be best to contact your local HP sales rep and begin the negotiations with them. You may get a better price if you buy consulting time? You might not but you need to speak to HP to get an idea of what it will cost in the end.