I keep a list (that I update each year with prices) of package bee suppliers, nucs and queens. I have some 25 package bee suppliers on it. The list is not yet complete for 2010 prices, but if anyone wants it (it is an Excel file), PM me an email address and I will send it to you.
The list also includes my past experiences with certain suppliers. I keep these records for my own purchasing decision making. No listed comments are intended to be an endorsement or criticism of any particular business - they are my experiences only.