Restrict Customer access to certain products or product categories.

Hi,

Just wondering if there is any way at present to limit a customer's access to a certain product category or list of products.

I've had a look around admin area and can't find anything that would do this. I found an Admin addon to restrict admin users to what products/categories they could create/edit, but nothing for Customers.

TIA
Henryk

This will require some custom coding. Scott Wilson (swguy) is good at this sort of thing.