Trying to find a plugin

Have 2 plugins that I’d like to have share customer information.
Here are the details:
– A portion of our site is open only to wholesale customers so I’m using using WP eMember to keep it locked down
– I have an application set up through in eMember to grant access.
– The store is a WP e-Commerce store and the customer will need to provide additional info before they can check out.

I’d really like for the customer not to have to fill out the same info twice and would love the WP e-commerce fields to pick up data from the eMember fields that already exist.

I would have invested in WP e-commerce ‘members only’ tool but those guys absolutely stink at getting back to a person so i have no idea what it can and can’t do.

In any case, anyone have tips for me on getting data shared across plugins?

thanks in advance!