Drupal Commerce: Can I have product list and checkout in the same page? I have a D7 site and I´m trying to implement Drupal Commerce.

I just need a page where the user can select the product from a list, and give some information about himself (billing information). And at the bottom it should be the "buy" button.

I don´t want a cart, the possibility of "continue shopping" and stuff like that.

How may I do that with Drupal Commerce? I´ve watched all day the videos and read some documentation, but it really seems over complicated when you just want a simple thing (opposed to a big ecommerce site).

Any guidance, tip or help will be very much appreciated. Thanks!
Try Commerce Express Checkout


  The Express Checkout button redirects to the Checkout page directly,
  without going to the Cart first, It also removes the Review page and
  adds the Payment checkout pane to the Checkout page, so the whole
  checkout process is done on one page.




Ckeck 


http://www.drupalcommerce.org/discussions/952/all-checkout-steps-one-page 
http://atendesigngroup.com/blog/express-checkout-drupal-commerce