Reverse Auction 1

Hello, I am interested in having a reverse auction website like [login to view URL] designed. It would need to be able to incorporate a payment system, probably starting with paypal but that may eventually change. Also it must be easy to keep track of the bids and for the auction to close after a selected number of bids. I pretty much want it to run like the site mentioned. As before i still want it to look very similar to the website mentioned but: 1) Down the right hand side i want a list of the different types of items i have in the auctions, electronics, cars etc. With the button at the bottom being a view all button. This would allow the user to either select a specific category or view all. 2) I want to introduce a refferal scheme where people refer there friends and once so many have been referred and have bidded they get a free bid. I will need to have some way of allowing them to refer people form my site and an ability to allow a free bid on an item of my choice as each auction will have a different bid value. 3) As mentioned before i want to set up paypal initially as my payment method but i am thinking of having personal accounts for the users which will either allow them to pay money each time they want to bid or they can put money into an account which each bid is then taken off of, this could also work with people buying points for there money and each auction being rated as a certain number of points rather than monetary value. This could also link in with point 2 with regards to free bids. 4) I will need a good way to keep the users records and to keep the bids so that the unique bid can be easily found. 5) When adding the products to the site this must be quite easy as is adding the description, something like how the products and description is added to zencart as the user may not be too good with coding. 6) A percentage of the profits will also be going to charity so i will need a page detailing the charity and also will need logos put on and will probably also need space for some banners regarding this. Banners will be designed by someone else. I know this is much more detailled than my previous description but the project wasn't as simple as i first thought. If i have anymore ideas i will post them but would appreciate any feedback from yourselves. Regards