osCommerce Add-Ons

Hello, I have an oscommerce website and need several modifications (probably using the add-ons in the oscommerce community). If all goes well, there may be other add-on adjustments needed in the near future. For now, this is what we need: - HTML Newsletter Capability: The website already uses the newsletter feature in text format, but we now need it to be fully html with a nice template that matches the site theme. Of course, all subscribe/unsubscribe info should stay in the newsletter, as well as the ability for those not able to see the html newsletter to link out to a web-version. It is very important that this works with what is already present (no duplicate subscribers, etc.) - Calculated Shipping Integration: In particular, there is only one category that requires this, but the item would have box sizes and weight associated with it, and the shipping would then be calculated based on that...for example, with FedEx. Thank you