We need a simple internal ordering system.
* Add our logo
* Needs multiple price levels per customer group
* Needs customers to log in (there are only 4 of them)
* Needs off the shelf eCommerce
* Joomla + Virtuemart does NOT have price levels per customer group and won't work.
* Needs tax / no tax items.
There is no shipping, invoicing etc to implement. It just allows internal people to order things.