Create a Business profile type

We would like to have an additional profile type for businesses. The profile type desired by the member would be chosen at signup. Administration of the profile fields should be managed exactly like the existing profile fields, but separate as a type allowing to define fields specifically for describing a business member. We would also want the ability to assign the profile type to membership levels, allowing for different fee structure between personal and business use members.
Additionally, search should allow a user to choose between searching business or personal profiles.

Breakdown:
1. A profile class, in addition to the existing default profile class in dolphin? End result: upon clicking "Join Now" the user chooses between a "Business" or "Personal" profile.
2. Search functionality extended to include the search of "business profiles" or "personal profiles".
2. A Seperate pricing structure for the secondary or "Business" profile Class. End result: A separate or integrated with, the existing "Membership Levels" admin section for setting the capabilities and price of one or more levels of the new additional "Business" profile class.