Quite a few sites go for a ‘scroll down’ site design; guess it does probably better justice in the age of touch screen devices. But yet, I have tried traditional navigation with tabs at the top, and still feel it more comfortable, so gone for that.
Also, never really understood why you should have a sliding set of pictures or even a video in the landing page. Supporters state that it is the best way to convey what you are all about, much better than words. Yet, the most successful company ever in site design is Google, and you cannot really argue for a more simple entry page there!
So, in doubt, I have left a very simple landing picture, and I love it.