Ecommerce Designing

- NOTE- I signed up for Ecommerce solutions with 1and1.com my business site. However, I dont have the time nor am I sure that the site fits my needs. Ideally, I need someone that can using 1and1 tools to develop the site or if that is not possible given my requirements to develop and design a site with the following capabilities or some combination:

Depending on the cost and your capabilities, I can divide the site into two types of business:

1. Ecommerce Site for consumers and small retailers (two types of accounts) to be able to using shopping cart place orders for our products. Small retailers - mom and pop stores that can order product using business tax id # to order products for their stores.
2. The above + also for our larger wholesale and retail customers to place orders directly on oursite. These types of customers would not need shopping cart but would need capability to do the following depending on the class of trade-

A. Retailer Trade (not mom and Pop retailers as per #1, but larger retailers with multiple locations that can purchase minimum # of cartons) with volume discounts and capability to assign salesperson/broker.

B. Retailer Wholesale Distributor- Distributors that purchase larger volume and distribute to retailers. Pricing model with volume discounts.

C. Vending Operator- Similar to A above.

D. Vending Distributor- Similar to Be above

For each customer2 A, B, C and D require ability to provide customer with tracking information when orders are processed and shipped. For 1 above ability to offer Fed Ex or UPS ground integration to track shipments using applications provided by Fed Ex or UPS.

Ability to send automatic emails ie Product Shipping with Pro # and/or Tracking #'s.
Send email marketing based on type of account.
Ability to automatically recommend products with POP up when placing orders.
Possible integration EDI if customers require.
Automatic Billing (order once it ships, creates an invoice and sends reminders)
Customers can set up automatic reminders through site to remind to order more.
Possibility of offering Frequent buyer program or rebate program based on either case or dollar purchases by account.
Dynamic meaning we can offer promotions or contests to create demand. Example- win a trip for two to XXXX....

Again, the objective is to use 1and1.com platform if possible but if not possible, I would consider having someone either develop 1 consumer and small mom and pop retailer using 1and1; and website geared towards larger retailers and wholesalers using a non ecommerce site ( I dont beleive we need necessarily need ecommerce except for smaller retailers that may want to pay with credit card).

Want to create social network links for the consumer end under 1 above with Twitter and Facebook.

In short, I need someone that can advise how to create a site at minimum expense with above preliminary functionalities.

Want very smart and interesting website ideally with flash. Product line is a wafer product.