product listing re. seller accounts

[jontygurn]

I am considering purchasing VM sellers as I need a website that allows sellers to create a profile and upload their own products. I also need sellers products to be listed at the top of the product list when they are uploaded with a small fee charged when they are uploaded, and the products to be automatically removed after a period of say 3 months. Could someone please advise if this is possible and if virtuemart would be a good option.

Any help much appreciated