The Area being Modelled is :- Customers and Enquiries

Barry,

I like the info you have on your site and I am not hung up on one schema or the other.

What I am looking for is to have a schema that has at least 30-40 tables, and be able
to fire a 100 or so queries on it, involving multi table joins, subqueries, nested
subselects, aggregations etc.

What would it cost to do this, assuming an hourly rate