Joomla ecommerce shop

Build a new stand alone joomla ecommerce shop to be linked from existing joomla website very simple design based on existing site ## Deliverables Standard ecommerce functions required with admin system dynamic categories & sub categories flexible variants of products (i.e. sml/med/lge) or colour varients etc integration with payment gateway (in this case paypal) addition on google analytics code (to be supplied) additional text pages for returns / postage / T&C's / help / contact etc basket functionality to order multiple products flexible shipping options (fixed rate / per product etc) order processing system (print orders / mark as shipped etc) order receipts to be emailed to user & to admin contact form on contact page Please advise if it will be possible to integrate store with current site user database... i.e. 600 registered forum users on main site, would make sense to use same logins for both systems - please advise Very simple design to match similar to main site see here some notes: [login to view URL] any css or flash files can be supplied can arrange for a sub domain to be set up if this is required please suggest the best extension that can run this store & provide example sites that you have developed using this extension