92776 eCommerce set up

Hello, I am working with an org. selling travel related podcast downloads. We have several web designers to chose from, but none of them have experience in the following. Setting up online purchasing with Credit cards and online payments through PayPal. Understanding Bandwidth, downloads, and hosting restrictions. Sample Tracks (5-10 minutes online) the audio sample button needs to be programmed for each of the 4 Podcasts. Connecting to iTunes/[login to view URL], and other music/podcast outlets Understanding search engine ranking and exposure. We realize we may have to hire a separate designer and programmer to accomplish this. If you are well versed in either, or both of these areas please provide an estimate for designing 8 pages, and/or programing the download, eCommerce and search engine ranking. Designers please reference site URL's in your portfolio. Thank you,