Showing all the subcategories with products on the same page instead of navigating to different pages

Hi, I want to show products and categories on the same page for instance , i have got products with only 4 columns , price , code , description and one more column , so what i was looking for when a client click on a category the system should navigate to the page like below instead of going through several pages, Is it possible to display in this manner:

Parent Category(Description)


sub-category1(description)
product 1(columns , price , code , description)
product 2(columns , price , code , description)
product 3(columns , price , code , description)
product 4(columns , price , code , description)
product 5(columns , price , code , description)

sub-category1(description)
product 1(columns , price , code , description)
product 2(columns , price , code , description)
product 3(columns , price , code , description)
product 4(columns , price , code , description)
product 5(columns , price , code , description)

Any suggestion or assistance will be highly appreciated.
Thanks

I have sorted out this issue , now i can display the products within sub-categories on one page , just need to edit catalog controller and model , with some modification in the category template view , job done