Project Detail

Description

I sell audio equipment online through ebay. Now I need to open a storefront online to sell my products. I currently sell about twenty products but will be adding 100-200 more over the next year.
A third of my sales are to european customers. Therefore I would like to also sell my goods in german and in french. THe website should have multi-language support, and if a customer is french for example it should come up in the french language. likewise, the shopping cart should display a multitude of currencies.
I need to be able to only sell certain items on each website if i want.
I would like to be able to have a video on each product page, like embedding a youtube video, so I can shoot a short video demonstrating a product (like a guitar), then post that video either directly to my website or to youtube, then have that video embedded in the product page for the customer to view.
Online real time Currency Converter operating in background to
Each store can have it's own products, categories, product types, product specifications, options, taxes, shipping, independently of other stores in the same database
ability to search website by product name, description.
SEO!!!!
ordering from the website should be quick and easy, and not require registering or lengthy number of steps.
ALso, the ability to interface and synch with ebay would be nice.

To summarize, I have a small product catalog that is simple and straightforward. I dont have configurble options or sizes or anything. I need a simple webstore to sell these items. each item would have 1-5 pictures. click to enlarge would be nice. I would also like to embed 1-5 videos, which I can make and add myself, to each product page, to demonstate the product.
I would like multi-language support, multi-currency support. I would also like to be able to have several seperate webstores that use the same inventory database, so I could make a specialized guitar store for example. the ability to ofer instant downloadable items for sale wold nice also, like pdf's or videos.
I can provide all graphics in the required format.
I am willing to work with you to achieve my goals, and I realize that I may not know enough about how certain features work, like multi-language or multi-portal, to ask for them in the correct terms. I am hoping to get a webstore up and going for under $500 if possible. I am willing and able to step in and learn some PHP or ASP.NET and MYSQL, to keep up the various features like updating my product catalog smoothly across multiple websites, adding and removing pictures and videos, and setting up my own small websites to sell just a handful of items and inclue banner ads, and tie those in to the master inventory database and the main parent portal.
Again, I am new, but a fast learner. Please let me know what you think we could do together and how you would do it.