Multiple Vendors in a Single Store

Team WPMU,

I'm experimenting with a storefront and am bouncing between MarketPress and WooCommerce.

My requirement is to have a single store with multiple vendors. I want to provide the marketplace, vendors can load up their own products. I take 15-20% for providing the infrastructure, they get the rest.

I know WooCommerce supports multi-vendor access, but this seems a little murky with MarketPress.

Can MarketPress support multiple vendors out of a single store (without a huge amount of hassle)?

Thanks, Guys!