looking for shopping cart with multiple sellers

[Odd Fact]

I am looking for a shopping cart with multiple sellers. The sellers should be able to login and upload pics, prices, and description. I also need the sellers to use their own payment methods instead of a common sitewide single checkout. Sort of like this site.
http://www.yessy.com

Any ideas if there is a preexisting software package like this?

[Corey Bryant]

I think VIArt (http://www.viart.com/) does this. I helped with one about four years ago. I also came across MultiCart (http://www.iscripts.com/multicart/index.php) as well. Modular Merchant might have something also. I think Sherri said they support that also.

[Odd Fact]

Looks like multi sellers was supposed to be added to ver 3.3 of VIArt but I did not see it in the list. I sent of a message to find out more.

I sent MultiCart does have multiple sellers. I am waiting back to see if multiple payments are possible.

I also found I.Boutigue.Mall which looks like it can do this. Altough it is a little pricey for the small startup I am working on.
http://www.netartmedia.net/mall/features.html

I will take a look at Modular Merchant.

[Odd Fact]

x-cart pro confirmed this will work with a modification
http://www.x-cart.com/pro_features.html

Still waiting to hear back from a few others.

[Odd Fact]

X-Cart does not have preset addon. It requires quite a bit of custom code $x,xxx. So that but it into a different price range. For that amount I might be able to have another cart modified.