Recently a client wanted a website with pages that did not require any scrolling vertically with the mouse, I have summarised why this is not necessary.
While it's a good idea to have the most important information towards the top of the screen, it is not necessary to have ALL of your content visible on the screen without the need for vertical scrolling.
Newspapers tend to put their main attention getting headling and story 'above the fold' which is where this idea originally came from, but websites are not printed newspapers and website usability has changed a lot since the early days of designing websites.
For a number of years now it has been perfectly good practice to make your home page (or any other page on your website) longer than the height of a computer screen.
I've also listed a couple of good articles below that explains the myth that web pages should appear on the screen without scrolling.