It all depends...are those prices driving actual ecommerce, or are they just listings? The best way is to provide a portal and login, probably using (at least) php and mysql to dynamically adjust whatever input you are allowing them to.
This is a pretty basic question for someone with clients to have, honestly, are you sure you aren't out of your league? Better to say that's not something you can do than botch it and both be unhappy.
__________________
twisted no more
|