e-shop structure tips?

[biggieuk]

Hi,

 

Not too sure if this is the right forum section but here goes..

 

I am looking for some website structure tips for my first basic online shop & admin backend.

 

The admin section will allow the user to add/remove/edit Main menu items, Add new product groups & products etc....  No payment functionality will be needed only a cart to store the selected products so sales know which order num to refer to.

 

What would be the preferred method, having one page for each area of the site and have it dynamically populated for the different products/sections?

 

I am also wanting to use .htaccess to create friendly URLS and for SEO reasons.

 

Any tips are appreciated as i have never developed a shop website before.

 

Thank you!