Using settings params in views

Hi there,
I would like to replace the hardcoced count numbers in views that show products and categories withe settings params.
For instance, in HomepageProducts.chstml, I'd like to replace the following string:

Html.DataList<ProductModel>(Model.Products, 4,

with something like this:

Html.DataList<ProductModel>(Model.Products, vsHomepageProductsProducts,

where vsHomepageProductsProducts is a special setting added in 'AllSettings'. In this fashon it's very easy to customize views and upgrade releases.

Do somebody know how to do it?

Thanks