drop the voice its iritating and will likely catch people out when at school / work.
The front page is too long visually and does not give an indication of the scroll down layers, you have combined two styles of pages into one. You either need a traditional shop front landing page, or you need to have the slide show as the main landing page (with no scroll down area) and have it so the lower links of the page are visible on the screen and then have a [skip into] to jump to a traditional shop front page.
The scroll show is too fast and there should be a tab option on it to allow you to slide between its page at will, it feels like its on fast forward at the moment.
The reason I suggest you need to lead to a normal shop front page is due to the speed of the the scroll and length of your main page most of your offers / tabs actually will get missed. I would recommend you run a click through analysis in Googles analytics panel too see what links people actually use on your front page.